Chain Rule Questions With Explanation

1. If 16 toys cost 240, then what do 40 toys cost ?

A. Rs. 600

B. Rs. 620

C. Rs. 640

D. Rs. 660

2. If the cost of x metres of wire is d rupees, then what is the cost of y metres of wire at the same rate ?

A. xd

B. yd

C. yd/x

D. x/yd

Answer: Option C

3. If the price of 23 toys is 276, then what will the price of 12 toys ?

A. 144

B. 148

C. 156

D. 186

4. If a quarter kg of potato costs 60 paise, how many paise will 200gm cost ?

A. 45 paise

B. 46 paise

C. 47 paise

D. 48 paise

5. An industrial loom weaves 0.128 metres of cloth every second. Approximately, how many seconds will it take for the loom to weave 25 metre of cloth ?

A. 194 seconds

B. 195 seconds

C. 196 seconds

D. 197 seconds

6. A flagstaff 17.5 metre high casts a shadow of length 40.25 metre. The height of building, which casts a shadow of length 28.75 metre under similar conditions will be :

A. 12 metre

B. 12.5 metre

C. 13.5 metre

D. 14 metre

7. 36 men can complete a piece of work in 18 days. In how many days will 27 men complete the same work ?

A. 24 days

B. 28 days

C. 34 days

D. 35 days

8. In a camp, there is a meal for 120 men or 200 children. If 150 children have taken the meal, how many men will be catered to with the remaining meal ?

A. 38 men

B. 32 men

C. 34 men

D. 30 men

9. 4 mat-weavers can weave 4 mats in 4 days. At the same rate, how many mats would be woven by 8 mat weavers in 8 days ?

A. 12

B. 14

C. 16

D. 18

10. In a dairy farm, 40 cows eat 40 bags of husk in 40 days. In how many days one cow will eat one bag of husk ?

A. 34 days

B. 40 days

C. 46 days

D. 50 days