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A man buys 3 cows and 18 goats in ₹ 47,200. Instead if he would have bought 8 cows and 3 goats, he had to pay ₹ 53,000 more. Cost of one cow is:
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- ₹ 10,000
- ₹ 11,000
- ₹ 12,000
- ₹ 13,000
Correct Option: C
Given that :- Cost Price of 1 cow = ₹ p
Cost Price of a goat = ₹ q
3p + 8q = 47200... (i)
⇒ 8p + 3q = 100200... (ii)
By equation (i) × 3 – (ii) × 8,
9p + 24q – 64p – 24q = 141600 – 801600
⇒ 55p = 660000
| p = | = ₹ 12000 | |
| 55 |
