Question
A cylindrical bucket of radius 42 cm and height 48 cm is
full of water. The water is emptied into a rectangular rub of length x cm and breath 84 cm. If the height in the tub rises by 24 cm, then what is the value of x? (Take π =22/7)?Solution
volume of water in cylindrical bucket = volume of water in rectangular tank πr² h= lbh (22/7) x 42 x 42 x 48 = 'x' x 84 x 24 (266112/2,016) = x x = 132
A buffalo alone can plough field ‘A’ in 20 days. A Bull alone can plough the field ‘A’ in 10 days. Find the number of days taken by 1 bulls and ...
7 men and 4 boys can complete a work in 6 days. A man completes double the work than a boy. In how many days will 5 men and 4 boys complete the work?
A’ and ‘B’ together can complete a work in 20 days while ‘A’ takes 25 days to complete the same work alone. If ‘C’ is 60% more efficient t...
A alone can complete 40% of a work in 18 days while B takes 15 days more than A to complete it. If B and C together can complete the work in 20 days, th...
A and B together, B and C together and A and C together can complete a piece of work in 12 days, 11 days and 9 days respectively. Find the ratio ...
A is half as efficient as B. C does half as much work as A and B together. If c alone can do the work in 40 days. Then in how many days will A, B and C ...
Efficiency of A is 25% more than B and B takes 30 days to complete a piece of work. A started the work alone and then B joined him 4 days before actual ...
‘X’ and ‘Y’ together can complete a work in 16 days, while ‘Y’ and ‘Z’ together can complete the work in 10 days. If ‘Y’ takes 20 da...
‘A’ can do a piece of work in 15 days. ‘B’ can do 70% of the same work in 20 days. If they work together for the entire time and...
Q can do a work in 15 days and R can do the two-third work done by P and Q together in a day. If R completes the work in 18 days, how many days will it ...
Relevant for Exams:
