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Grandfather of Sukhdev and Baldev divided an amount of Rs.2,150 among them in the ratio 20 : 23. They both donated Rs.100 each for charity out of their shares. What will be the ratio of their respective amounts?
1. 6 : 7
2. 19 : 22
3. 80 : 77
4. 120 : 123

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Correct Answer - Option 1 : 6 : 7

Given:

Sharing ratio of the amount to be divided between Sukhdev and Baldev = 20 : 23

Amount to be divided between Sukhdev and Baldev = Rs.2150 

Calculation:

Share of Sukhdev = 2150 × 20/43 = 1000

Share of Sukhdev after donating = Rs.1000 - Rs.100 = Rs.900

Share of Baldev = 2150 × 23/43 = Rs.1150

Share of Baldev after donating = Rs.1150 - Rs.100 = Rs.1050

∴ New ratio of the shares of Sukhdev and Baldev = 900 : 1050 

⇒ 6 : 7 

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