Friday, 28 February 2020

A can run 224 metre in 28 seconds and B in 32 seconds. By what distance A beat B?

1. A can run 224 metre in 28 seconds and B in 32 seconds. By what distance A beat B?

Answer: 28 metre
Explanation:
Given that,
A beats B by 4 seconds
Speed of B = ( Distance / Time taken by B )
( 224 / 32 )
= 7 m/s
Distance covered by B in 4 seconds = ( Speed * time )
= ( 7 * 4 )
= 28 metre.
∴ At 28 metre A will beat B.

2. A man buys Rs. 20 shares paying 9% dividend. The man wants to have an interest of 12% on his money. What is the market value of each share?

Answer: Rs. 15
Explanation:
Face value of each share = Rs. 20
Dividend per share 9% of 20
= ( 9 * 20 ) / 100
= ( 9 / 5 )
He needs to have an interest of 12% on his money.
Money Paid for a share * ( 12 / 100 ) = ( 9 / 5 )
Money Paid for a share = ( 9 / 5 ) * ( 100 / 12 )
= 9 * ( 20 / 12 )
= 9 * ( 5 / 3 )
= 3 * 5
= Rs. 15
∴ Market Value of the share is Rs.15.

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