Ram deposits Rs P with a bank at r% compound interest and see it reach Rs 16 P in 20 years. If he had invested the same amount at r% simple interest f...

Comprehensive strength of a cement is a multiple of amount of materials C, S A , F used. If the amount of materials of C, S , A , F are changed by +30...

The difference in compound interests earned on a certain sum, for which the interest is compounded annually, in the first and the second year is Rs 14...

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The speed of the boat in still water is 6kmph. What is the speed of the stream (in kmph) if the boat can cover 32km downstream or 16 km upstream in th...

There are two clocks, which are set to correct time on sunday at 12:00 noon. The first clock gains 5/2 minutes every hour while the second clock loses...

what are the last two digits of 46^23 - 23^46?

find the valid argument(s) in the given below. 1. Ersatz things are poor copies. Only poor copies are acceptable. Ersatz things are acceptable. 2. E...

Find the remainder when 47^57^67 is divided by 18?

the ratio of Kumar's and abhishek's income is 4:5 and that of their expenditure is 2:3. If kumar saves 1/3rd of his income, find the ratio of their sa...

akbar and birbal started a business with some investments. Akbar as a working partner received 40% of the annual profit as salary and the remaining wa...

The teacher of Confucius, the confused soul, told him: "my age a two digit number is not prime but odd and if you reverse the digits of my age and add...

the difference between the cubes of two consecutive positive integers is 1027. then the product of these integers is.

the value of x+y such that x square - y square =343 and x,y are positive integers is, 1. 343 2. 49 3. 7 4. a or b

how many positive integers less than or equal to 120 are relatively prime to 120?