A contractor decided to complete the work in 15 days and employed 20 men at the beginning and 40 men additionally after 10 days and got the work completed as per schedule. If he had not employed the additional men, how many extra days would he have needed to complete the work?
If he had not employed the additional men, then let work completes in T days. So as by chain rule, Men × time = constant So, 20 × 10 + (20+40) × 5 = 20 × T 200 + 300 = 20T T = 500/20 = 25 days So work delayed for = 25 - 15 = 10 days.
What is the average of first 24 multiples of 2.4?
The sum of three consecutive natural numbers each divisible by 5, is 255. The largest among them is:
All rational numbers are ______ numbers.
If 94*6714 is divisible by 11, where * is a digit, then * is equal to
22 44 176 1078 8448
N is a three-digit number. N2= ………74, how many possible values for N?
Divisor is 8 times of Quotient and 3 times of its remainder. If the remainder is 8. Find the dividend?
Sum of squares of three consecutive numbers is 974. Find the sum of first and third number.
