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how do i solve para jumbles

how do i solve para jumbles

how do i answer

as a sales gimmick, a cloth merchant began measuring the cloth with a yardstick that was x inches longer, beacuse of which his profit reduced from 50% of his cost to 20% of his cost. find x if 1 yard=36 inches.

hi could anyone let me know the formula for finding the number of ordered pairs of a given number. for eg the number of ordered pairs (a,b,c,d) where abcd=10800

A person want to score 120 marks out of 135. What should be his accuracy rate so that he can score his desired marks?

A person want to score 120 marks put of 135. What should be his accuracy race so that he can score his desired marks?

sum of all the numbers that can be formed using digits 1,2,3,4 without repetition

is there any shortcut formula to find remainders ?

2n+1C12n+1C1 + 2n+1C22n+1C2 + ... 2n+1Cn−12n+1Cn−1 + 2n+1Cn2n+1Cn = 63 ......... How to solve this equation?