Discussion :: IBPS BANK EXAM TEST 6
- If the total cost of four tube lights and three bulbs is Rs.260 and the ratio between the cost of tube light and a bulb is 5:2 respectively, what is the total cost of one tube light and six bulbs ?
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Answer : Option D
Explanation :
Let the cost of tube light and a bulb be Rs. 5x and Rs. 2x respectively
4 * 5x + 3 * 2x = 260
=> 26x = 260 => x = 260/26 = 10
Cost of 1 tube light and 6 bulbs = 5x + 6 * 2x
= 17x = 17 * 10 = 170
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