ICSE Class X Math 2013 Solved Paper

Salman buys 50 shares of face value ₹100 available at ₹ 132 .

Question : 24

Total: 46

If he wants to increase his annual income by ₹150 , how many extra shares should he buy?

Solution:

Let extra share should he buy be x .
then total number of shares =50+x
Total face value =₹100×(50+x)
∴ Annual income =₹‌

100×(50+x)×7.5

100

‌=(50+x)×7.5
∴‌‌(50+x)×7.5‌=375+150
50+x‌=‌

525

7.5

=70
x‌=70−50=20
Hence, the extra shares should be buy =20.

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