By selling tea at ₹120/kg a man gained 1/21 of its cost price . Find the cost price of 100 kg tea.
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Step-by-step explanation:
In the first case:
S.P. = Rs. 120 per kg
Profit =20%
∴ C.P. =120×
120
100
= Rs. 100 per kg
In the second Case:
S.P. of tea with 30% profit for shopkeeper
=100×
100
130
= Rs. 130 per kg
∴ S.P. of tea worth Rs. 120 per kg increased by 10.
∴ S.P. of tea worth Rs. 1 per kg is increased by
120
10
.
∴ S.P. of tea worth Rs. 100 per kg is increased by
120
10×100
= Rs. 8
3
1
∴ Percentage increase in S.P. =
ans: 8 1/3 % .
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