Harry, Hermione, and Ron are playing together with at most 40 marbles in total. All at the same time Harry passed one-third of his marbles to Hermione...

A few students decided to buy a gift for their teacher. So, each of them decided to contribute an equal amount for the gift. But when they went to buy...

In a house ABC with 12 members, the avg age of the members was 42 years in the year 1966. The next year, the oldest member of the family died at the a...

From a vessel full of pure petrol, 6 litres of petrol was drawn out and replaced by kerosene. Again 6 litres of mixture was drawn out from the vessel ...

A chemist sells 3 variants of a medicine of concentrations 30%, 50% , 80%. The original cost of 100% medicine is Rs 80/unit. If he wants to make a mix...

Please solve: how many words using all 8 letters of TATHAGAT can be formed such that a) no two Ts are together?b) first letter is not T and last lette...

Hello, Please solve : How many different size rectangles are there in a square grid of 5 x 7 ?

Hello Sir, Please provide answer key of percentage module. The ans key on FB Notes page is old and non updated.

Please solve this

thanks