Question

Divide 780 among the ratio 3:10

Answer 1

391 Rs is divided within three friends in the ratio 1/2 : 2/3 : 3/4

First of all we have to resolve ratio in simple form ,

Take LCM of denominator of each fraction ,

e.g., LCM { 2, 3, 4} = 12

Now, 1 × 6/2 × 6 : 2 × 4/3 × 4 : 3 × 3/4 × 3

⇒6/12 : 8/12 : 9/12

⇒ 6 : 8 : 9

Hence, 391 is divided within three friends in the 6 : 8 : 9 ratio .

Now, first share = 391 × 6/(6 + 8 + 9) = 391 × 6/23 = 17 × 6 = 102

2nd share = 391 × 8/(6 + 8 + 9) = 17 × 8 = 136

3rd and last share = 391 × 9/(6 + 8 + 9) = 17 × 9 = 153

Hence, last share is 153 Rs

Answer 2

Answer:

780÷13= 60

therefore, 60×3:60×10

= 180:600