If 15 boys earn ₹900 in 5 days, then h

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Target Exam

CUET

Subject

General Test

Chapter

Numerical Ability

Topic

Time and Work

Question:

If 15 boys earn ₹900 in 5 days, then how much will 20 boys earn in 7 days?

Options:

₹1,580

₹1,680

₹1,540

₹1,650

Correct Answer:

₹1,680

Explanation:

Formula to be used here,

\(\frac{M_1\;×\;D_1}{M_2\;×\;D_2}\) = \(\frac{R_1}{R_2}\)

where, M = No. of Men, D = No. of Days, R = Rate/wages,

⇒ Putting in the values,

⇒ \(\frac{15\;×\;5}{\;×\;7}\) = \(\frac{900}{R_2}\)

⇒ \( { R}_{2 } \) = Rs. 1680.