Answer :
The 3/5 parts of the sum for if 2/3 parts of sum is RS 42 is Rs378
Let the parts of the sum be x
If 2/3 part of sum is RS 420, then;
2/3 of x = 420
2x/3 = 420
Cross multiply
2x = 3 * 420
2x = 1260
x = 1260/2
x = 630
Next is to get 3/5 parts of sum. This is expressed as:
3/5 * 630
= 3 * 126
= Rsar378
Hence 3/5 parts of the sum for if 2/3 parts of sum ar e RS 42 is Rs378
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