Advertisements
Advertisements
Question
Weight of 15 books is 6 kg. What is the weight of 45 such books?
Advertisements
Solution
Weight of 15 books = 6 kg
Weight of 1 book = `6/15` kg
Weight of 45 such books = `15/6xx45` = 112.5 kg
APPEARS IN
RELATED QUESTIONS
4 men or 6 women earn Rs. 360 in one day. Find, how much will:
(i) a man earn in one day?
(ii) a woman earn in one day?
(iii) 6 men and 4 women earn in one day?
50 labourers can dig a pond in 16 days. How many labourers will be required to dig another pond, double in size in 20 days?
A particular work can be completed by 6 men and 6 women in 24 days; whereas the same work can be completed by 8 men and 12 women in 15 days. Find :
(i) according to the amount of work done, one man is equivalent to how many women.
(ii) the time is taken by 4 men and 6 women to complete the same work.
Six taps can fill an empty cistern in 8 hours. How much more time will be taken, if two taps go out of order? Assume, all the taps supply water at the same rate.
If 25 horses consume 18 quintal in 36 days, how long will 28 quintal last for 30 horses?
If 70 men dig 15,000 sq. m of a field in 5 days, how many men will dig 22,500 sq. m field in 25 days?
A group of labourers promises to do a piece of work in 10 days, but five of them become absent. If the remaining labourers complete the work in 12 days, find their original number in the group.
A car covers a distance of 180 km in 5 hours. How much distance will the car cover in 3 hours with the same speed?
Cost of 10 kg of wheat is ₹ 180. What quantity of wheat can be purchased in ₹ 432?
In the unitary method, which mathematical operation is used to convert the value of "many" units to the value of "one" unit?
