Exams › IBPS PO › Quantitative Aptitude
A diamond weighing 150 grams is cut into three pieces. The weights of the first and second pieces are in the ratio $8:5$. If the third piece weighs 20 grams, find the weight of the first piece.
- 80 grams
- 90 grams
- 100 grams
- 85 grams
Correct answer: 80 grams
Solution
The total weight of the first two pieces is $150-20=130$ grams. Since their ratio is $8:5$, the first piece is $\frac{8}{8+5}\times 130=80$ grams.
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