CUET UG 2025 — General Test Arithmetic

Let the monthly salary $= S$=S

PF deduction $= 10\%$=10% of $S = 0.10S$S=0.10S

Remaining amount $= S - 0.10S$=S−0.10S

$$= 0.90S$$=0.90S

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Savings $= 30\%$=30% of remaining amount

$$= 0.30 \times 0.90S$$=0.30×0.90S

$$= 0.27S$$=0.27S

Amount left after savings $= 0.90S - 0.27S$=0.90S−0.27S

$$= 0.63S$$=0.63S

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The remaining amount $(0.63S)$(0.63S) is spent on medicine and groceries in the ratio $3:4$3:4.

Medicine takes $3$3 parts

Groceries take $4$4 parts

Total parts $= 3 + 4 = 7$=3+4=7

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Medicine expense $= \dfrac{3}{7}$=73​ of remaining amount

Medicine $= \dfrac{3}{7} \times 0.63S$=73​×0.63S

Given that medicine expense $= \text{Rs } 2700$=Rs 2700:

$$\dfrac{3}{7} \times 0.63S = 2700$$73​×0.63S=2700

$$0.63S = 2700 \times \dfrac{7}{3}$$0.63S=2700×37​

$$0.63S = 6300$$0.63S=6300

$$S = \dfrac{6300}{0.63}$$S=0.636300​

$$S = 10000$$S=10000

Therefore, the monthly salary is Rs 10,000.