Quiz Level: Grade 8Total Questions: 20 1 / 50 If 8 men can do a piece of work in 20 days, in how many days could 20 men do the same work? 8 days 10 days 6 days 5 days 2 / 50 If 15 workers can finish a task in 42 hours, calculate the number of workers required to complete the same task in 30 hours. 18 workers 21 workers 24 workers 20 workers 3 / 50 In a factory, each employee can make 40 chicken pies in one hour. How long will it take 3 people to make 240 pies? 2 hours 5 hours 3 hours 4 hours 4 / 50 If 36 men can do a piece of work in 25 days, in how many days will 15 men do it? 50 days 60 days 45 days 65 days 5 / 50 The present ages of Mr. Sam and his Son are in the ratio of 17 : 19 . If the ratio of their ages 9 years ago was 7 : 3, then find their present ages? Their present ages are 34 and 38 Their present ages are 51 and 27 Their present ages are 48 and 25 Their present ages are 56 and 42 6 / 50 If 15 men can do a work in 12 days, how many men will do the same work in 6 days? 36 men 20 men 24 men 30 men 7 / 50 If x = 20 and y = 40, then x and y are Neither directly nor inversely proportional Cannot be determined Directly proportional Inversely proportional 8 / 50 Find the number which when added to each term of the ratio 27 : 35, changes the ratio to 4 : 5. Check 9 / 50 A train travels 60 km in 1 hour. How long will it take to go 150 km ? 2 hours 3 hours 2.5 hours 3.5 hours 10 / 50 Write the angles of a triangle in the ratio 2 : 3 : 4? The triangle can't be formed The angles are 30°, 60° and 90° The angles are 40°, 60° and 80° The angles are 20°, 60° and 100° 11 / 50 Sanvi types 200 words in half an hour. How many words will she type in 12 minutes ? 90 words 70 words 80 words 100 words 12 / 50 If x and y are inversely proportional, then xy = constant x + y = constant y/x = constant x – y = constant 13 / 50 The length and breadth of a rectangle are in the ratio 8 : 5. The length is 9 cm more than the breadth. What are the length and breadth of the rectangle? Length is 28 cm and Breadth is 21 cm Length is 24 cm and Breadth is 15 cm Length is 16 cm and Breadth is 10 cm Length is 32 cm and Breadth is 20 cm 14 / 50 Ben rides his bike at a speed of 10mph. How long does it take him to reach 40 miles? 3 hours 4 hours 5 hours 7 hours 15 / 50 If a and b varies inversely as each other and a = 16 when b = 4. Find b when a = 8? b = 6 b =12 b = 8 b =10 16 / 50 Two numbers are in the ration of 6 : 11. On adding 2 to the first and 7 to the second, their ratios become 8 : 15. Find the numbers. 78 and 143 73 and 138 80 and 148 80 and 140 17 / 50 The ratio of the number of boys to the number of girls in a school is 14 : 15. There are 27 more girls than boys. How many girls are there in this school? 408 girls 405 girls 378 girls 381 girls 18 / 50 The ratio of the number of men and women who attended a meeting is 3 : 5. After some time, half the men and one-third the women left. What is the ratio of men to women now? 9 : 10 9 : 20 11 : 20 11 : 10 19 / 50 If x and y are directly proportional, then which of the following is correct? x – y = constant x + y = constant y/x = constant xy = constant 20 / 50 A machine in a soft drink factory fills 600 bottles in 5 hours. How many bottles will it fill in 2 hours? 280 bottles 180 bottles 240 bottles 200 bottles 21 / 50 If A : C = 5 : 8 and B : C = 5 : 6, find A : B : C? A : B : C = 18 : 24 : 30 A : B : C = 15 : 18 : 24 A : B : C = 15 : 20 : 24 A : B : C = 18 : 20 : 24 22 / 50 1200 men can finish a stock of food in 35 days. How many more men should join them so that the same stock may last for 25 days? 460 more men should join 520 more men should join 500 more men should join 480 more men should join 23 / 50 The sides of a triangle are in the ratio 2 : 3: 4 and the longest side is 20 cm longer than the shortest side. Compute the length of each side. Sides lengths of the triangle are 20cm, 30cm and 40cm Sides lengths of the triangle are 5cm, 8cm and 10 cm Sides lengths of the triangle are 20cm, 30cm and 40cm Sides lengths of the triangle are 15cm, 20cm and 30cm 24 / 50 Rohit bought 12 registers for £156, find the cost of 7 such registers. £83 £108 £111 £91 25 / 50 In a contest, the first gets £1000 as prize, the second £600 and the third £400 . What is the ratio of the prize money? 10 : 6 : 8 10 : 8 : 4 5 : 3 : 2 5 : 4 : 3 26 / 50 A sum of money is divided between A and B in the ratio 5 : 7. If B’s share is £665, find the total amount. £940 £1140 £1240 £1040 27 / 50 'x' and 'y' vary inversely with each other. If x – 15 when y = 6, find then the value of x when y = 15 is x = 4 x = 6 x = 8 x = 10 28 / 50 The sum of three numbers is 212. If the ratio of the first to the second is 13 : 16 and that of the second to the third is 2 : 3, then find the numbers. 26, 90 and 96 32, 72 and 108 39, 48 and 125 52, 64 and 96 29 / 50 If A : C = 5 : 8 and B : C = 5 : 6, find A : B? A : B = 4 : 5 A : B = 3 : 4 A : B = 5 : 7 A : B = 2 : 3 30 / 50 The ratio of the number of boys to the number of girls in a school is 14 : 15. There are 27 more girls than boys. How many boys are there in this school? 378 boys 405 boys 381 boys 408 boys 31 / 50 10 men can dig a trench in 15 days. How long will 3 men take? 50 days 48 days 60 days 54 days 32 / 50 If 25 floppy discs cost £5.50, calculate the cost of 11 floppy discs? £3.12 £2.26 £1.86 £2.42 33 / 50 A work-force of 420 men with a contractor can finish a certain piece of work in 9 months. How many extra men must he employ to complete the job in 7 months? 120 extra men are required 124 extra men are required 108 extra men are required 136 extra men are required 34 / 50 If 6 copies of a book cost £9, calculate the cost of 8 books? £12 £14.5 £15 £10.5 35 / 50 A worker is paid £200 for 8 days work. If he works for 20 days, how much will he get? £400 £300 £600 £500 36 / 50 A boy runs 1 km in 10 minutes. How long will he take to ran 600 m? 12 minutes 8 minutes 6 minutes 10 minutes 37 / 50 A work force of 50 men with a contractor can finish a piece of work in 5 months. In how many months the same work can be completed by 125 men? 2 months 1 month 4 months 3 months 38 / 50 A man walks 20 km in 5 hours. How long would he take in walking 32 km ? 6 hours 3 hours 8 hours 4 hours 39 / 50 A worker is paid £210 for 6 days work. If his total income of the month is £875, for how many days did he work? 30 days 15 days 20 days 25 days 40 / 50 18 men can reap a field in 35 days. For reaping the same field in 15 days, how many men are required? 42 men 44 men 36 men 40 men 41 / 50 In a factory, each employee can make 40 chicken pies in one hour. How long will it take 6 people to make 40 pies? 10 minutes 25 minutes 15 minutes 20 minutes 42 / 50 A car travels 14 km in 25 minutes. Find out how far the car can travel in 5 hours if the speed remains the same? 180 km 156 km 172 km 168 km 43 / 50 A car is travelling at the average speed of 50 km/hr. How much distance would it travel in 12 minutes? 15 km 22 km 10 km 12 km 44 / 50 A loaded truck travels 168 km in 5 hours. How far can it travel in 25 minutes? 18 km 14 km 15 km 10 km 45 / 50 The three angles of a triangles are in the ratio 1 : 3 : 5. How much is each angle? The angles of the triangle are 15°, 45° and 120° The angles of the triangle are 25°, 75° and 80° The angles of the triangle are 30°, 60° and 90° The angles of the triangle are 20°, 60° and 100° 46 / 50 Two numbers are in the ratio of 7 : 4. If their difference is 72, find the numbers. 198 and 126 182 and 112 168 and 96 154 and 88 47 / 50 If the cost of 20 books is £180, how much will 15 books cost? £135 £150 £126 £144 48 / 50 In a rectangle, the ratio of the length to breadth is 5 : 3. The length is 2.5 m. What is the breadth? 2 m 1.5 m 1 m 1.8 m 49 / 50 6 pipes are required to fill a tank in 60 minutes. How long will it take if only 5 pipes of the same type are used ? 48 minutes 60 minutes 72 minutes 50 minutes 50 / 50 Sameera takes 125 minutes in walking a distance of 100m. What distance would she cover in 315 minutes? 256 m 252 m 220 m 244 m Please enter your name below. Name Your score is LinkedIn Facebook VKontakte 0% Restart quiz Exit Send feedback
