What is the um of the digits of the least number which when divided by 54 leaves 35 as remainder, when divided by 80 leaves 61 as remainder and when divided by 119 leaves 100 leaves 100 as remainder?

Let x% of y = y% of A, then
? xy / 100 = yA/100
? A = (xy/100) x (100/y) = x

Let 37¹/₂% of A = 900
? {(75/2) x A} x 100 = 900
? A = (900 x 2 x 100) / 75 = 2400
So, 62¹/₂% of A = (125/2) x (1/100) x 2400 =1500

Let A - 6% of A = AB.
? (94 x A) / 100 = AB
? B = 0.94

Let original price = Rs. 100
? Increase price = Rs. 160
? Decrease on Rs. 160 = Rs. 60
? Decrease on Rs. 100 = (60/160) x 100 % = 37¹/_2%

?(3.6/100) x 40
= ?1.44 = 1.2

Minimum passing marks = 50 + 50 = 100
Let the total marks = x
Then, 50% of x = 100
? x = (100/50) x 100 = 200

Profit or loss percent = ab/100 %
= (20 x 20)/100 %
= -4%

5% of 50% of 500
= (5/100) x (50/100) x 500
= 12.5

Let the required amount of money be N.
Then, N x 25% = 180 x 12¹/₂%
? N = (180 x 12.5)/25
= ? 90

Monthly income of a person = ? 5000
Increment in income = (30/100) x 5000 = 1500
New income = 5000 + 15000 = ? 6500