Question

Find the number of pairs of two-digit whole numbers whose difference is equal to 50?

Answer 1

Answer:

let the first pair of two digit no be xy and the second pair of number be yx

we want two digit number , Two digit number starts from 10 and last two digit number os 99

we want the difference of 50

it is possible when we take the biggest two digit number

Therefore , the number is 99

therefore , 99 - 49 = 50

hence, the pair of two digit number is 99 and 49

Hope it will help you .