Relation for Inverse Proportion
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Q.
(i) 700 rs, 308 rs (ii) 14 rs, 12 rs. 40 paise. (iii) 5 litre, 2500 ml (iv) 3 years 4 months, 5years 8 months (v) 3.8 kg, 1900 gm
(vi) 7 minutes 20 seconds, 5 minutes 6 seconds.
Find the reduced form of the ratio of the first quantity to second quantity.
(i) 700 rs, 308 rs (ii) 14 rs, 12 rs. 40 paise. (iii) 5 litre, 2500 ml (iv) 3 years 4 months, 5years 8 months (v) 3.8 kg, 1900 gm
(vi) 7 minutes 20 seconds, 5 minutes 6 seconds.
Q. A and B working separately can do a piece of work in 10 and 15 days respectively. If they work on alternate days beginning with A, in how many days will the work be completed?
Q. If x varies directly as y and inversely as z and if x = 8 when y = 5 and z = 3 then find y when x = 12 and z = 4.
Q. A can do a piece of work in 10 days , and B can do the same work in 20 days . With the help of C , they finished the work in 4 days . C can do the work in how many days, working alone ?
Q. ___ days. (Round off the answer to the nearest integer)
An army camp of 250 men has provision for 350 days. After 25 days, 50 men died due to epidemic. The food will last for
Q. ___
A farmer has enough food to feed 20 cattle for 6 days. The number of days food will last if there were 10 more cattle is
Q. Two cars A and B are moving on the straight parallel paths with speeds 36 kmh−1 and 72 kmh−1, respectively, starting from the same point in the same direction. After 20 min. how much behind is car A from car B?
Q. If x, y, z are in continued proportion then show that .
Q. Ten men, working for 6 days of 10 hours each, finish 521 of a piece of work. How many men working at the same rate and for the same number of hours each day, will be required to complete the remaining work in 8 days?
- 24
- 26
- 25
- 21
Q. 10 man can make a wall in 8 days. How many men required to complete the same work half day
- 80
- 100
- 120
- 160
Q. ___ days. (Round off the answer to the nearest integer)
An army camp of 250 men has provision for 350 days. After 25 days, 50 men died due to epidemic. The food will last for
Q. Paulette, Quentin, and Rosie each donated money to a charity. Paulette gave as much money as Quentin and Rosie gave together. If Quentin had given three times more than he gave, he would have given 40morethanPaulette.AndifRosiehadgiven20$ less, she would have given half as much as Paulette. How much did Paulette give?
- 80$
- 120$
- 160$
- 200$
Q. If from twice the greater of two numbers 16 is subtracted, the result is half the other number. If from half the greater number 1 is subtracted, the result is still half the other number. What are the numbers?
Q. n is directly proportional to m. Complete the following table.
| m | 3 | 5 | 6.5 | ... | 1.25 |
| n | 12 | 20 | ... | 28 | ... |
