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Let the total work be LCM of (36, 54 and 18) = 108 units Number of units of work done by P alone in one day = 108/36 = 3 units Number of units of work done by Q alone in one day = 108/54 = 2 units Number of units of work done by P, Q and R together in one day = 108/18 = 6 units Number of units of work done by R alone in one day = 6 – 3 – 2 = 1 unit So, time taken by R alone to complete the work = 108/1 = 108 days So, per day wage of R = 5940/108 = Rs. 55
Rs.13000 was invested for 2 years in scheme A which offers compound interest at 10% per annum. What approximate interest earned on investing the amount ...
A certain sum of money yields Rs. 3,310 as compound interest for 3 years at 10% per annum. The sum is (in rupees).
A man borrowed Rs 300 and promised to pay back in 11 equal instalments of Rs 30 each. Find the rate of simple interest per annum?
The simple interest received after 5 years on Rs. (x + 500) at the rate of 20% p.a. is Rs. (2x – 1500). The amount received on Rs. 3x when investe...
Find the period when simple interest on Rs.4000 at 6% per annum will be Rs.400.
If the difference between C.I. and S.I. is Rs. 512 at 20% rate of interest in 3 years, then find the principal on C.I.?
Simple interest earned on an amount of Rs. 2600 at rate of R% per annum after 4 years is Rs. 1300. Find the simple interest earned on an amount of Rs. 1...
In what time will Rs. 21000 amount to Rs. 27951 @ 10% compound interest?
Arjun deposited Rs. ‘Z’ in a bank offering compound interest of 8% p.a. compounded annually. After 4 years, he invested the amount received from the...