Question
"Bhanu" is 37.5% more productive than "Anurag," the two
of them can finish the entire task in 40 days. Determine how long it took "Anurag" by himself to finish the entire taskSolution
ATQ, Let efficiency of ‘Anurag’ be ‘8p’ units per day Efficiency of ‘Bhanu’ = 1.375 × 8p = 11p units per day Total work = (11p + 8p) × 40 = (19p × 40) units Desired time = (19p × 40)/8p = 95 days
The perimeter of a rectangular field is 20 metres and its area is 18 m2 . What is the length of the diagonal of this field?
Find volume of a cone of radius 7 cm and height 24 cm. (Use π = 22/7)
Length and breadth of a rectangular room are in the ratio 4 ∶ 5. The perimeter of the room is 180 m. Cost of flooring is Rs. 75 per square metre. Find...
A cuboidal water tank has dimensions (20 × 14 × 12) cm and is open from the top. If painting the outer surface costs Rs. 5 per cm², find the total pa...
- A cylindrical road roller has a diameter of 4 m and a length of 2 m. It rotates 8 times every minute. Find the area it rolls over in 25 minutes.
The length, breadth and height of a storeroom are 14m, 5m and 8m respectively. If each box occupies 40 m3 of space, then how many boxes can b...
- Find the volume of a sphere whose diameter is 10.5 cm. (Take π = 22/7)
A rectangular piece of land has a perimeter of 56 metres and length of 22 metres. If the area of the land is to be divided into 6 equal portions, then w...
Find the area of the octagon whose side is 20 cm?
(175/3)% of the raindrops could have been collected, when 6 cm of rain has fallen on a part of land of area 2 km2, in a tank having a 200 m &...