Last Updated On [03-11-2023]
An increase of 20% on price of banana enable a man to purchase 4 bananas les for 
40. The price of 15 bananas before increase in price was
a)
10
b)
15
c)
20
d)
25
An increase of 20% on price of banana enable a man to purchase 4 bananas les for 40. The price of 15 bananas before increase in price was
a)
10
b)
15
c)
20
d)
25
Question ID - 55894 :-
An increase of 20% on price of banana enable a man to purchase 4 bananas les for 40. The price of 15 bananas before increase in price was
a)
10
b)
15
c)
20
d)
25
|
An increase of 20% on price of banana enable a man to purchase 4 bananas les for |
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a) |
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b) |
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c) |
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d) |
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Let the original price of banana be 
∴ New price is 20% more than 
=
Difference in the number of bananas before and after increase of price=4
∴ 
∴ 
Next Question :
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If a bar is made of copper whose coefficient of linear expansion is one and a half times that of iron, the ratio of the force developed in the copper bar to the iron bar of identical lengths and cross-sections, when heated through the same temperature range (Young’s modulus for copper may be taken equal to that of iron) is |
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a) |
3/2 |
b) |
2/3 |
c) |
9/4 |
d) |
4/9 |
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