Mathematics · Ratio and Proportion
A student buys three different types of pens whose quantities are in the ratio 5 : 6 : 4. The cost of each type of pen is Rs. 5, Rs. 10, and Rs. 15 respectively. If the student spends a total of Rs. 290 to buy all the pens, find the number of Rs. 10 pens purchased.
- 116
- 218
- 314
- 412✓
Correct answer
12
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