A person has 4 coins each of different denomination. What is the number of different sums of money

The United States of America.

a) Force on the seventh coin is exerted by the weight of the three coins on its top. Weight of one coin = mg Weight of three coins = 3mg Hence, the force...

(a) Task 1 can not be assigned to either person 1 or 2 i.e. there are 4 options. Task 2 can be assigned to 3 or 4 So, there are only 2 options...

(b) Total money with Mona = (4 x 2) + (2 x 20) + (3 x 100) = Rs.8 + Rs.40 + Rs. 300 = Rs.348  Price of book = Rs.326 Mona...

(d) Let the no. of Rs.1 coins = x and the no. of Rs.2 coins = y According to the question: x + y = 50               ...

(a) Force on the seventh coin is exerted by the weight of the three coins on its top.  Weight of one coin = mg  Weight of three coins = 3mg  Hence, the force...

Rs.500 and Rs.1000 denomination currency notes were demonetised on Nov 8, 2016.

Rs.500 (new series) and Rs.2000 notes were introduced on Nov 8, 2016.

James was doubtful about his sums and calculations when he looked up from his window and saw a star-studded night sky. He knew that somewhere amongst those stars was Comet...