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1
A mixture has 20 liters of milk and 10 liters of water. How much water is added to make milk 40% of the mixture?
A.20 liters
B.25 liters
C.30 liters
D.35 liters
2
A trader marks an item at Rs. 600 and offers a 10% discount. If he still makes a 20% profit, what is the cost price?
A.Rs. 400
B.Rs. 450
C.Rs. 500
D.Rs. 540
3
The ratio of ages of P and Q is 2:3. After 12 years, it becomes 5:7. After how many years will it be 3:4?
A.6
B.8
C.10
D.15
4
What is 11 × 9?
A.97
B.99
C.101
D.103
Explanation: 11 × 9 = 99.
5
At what rate will ₹4000 amount to ₹4800 in 4 years at simple interest?
A.5%
B.6%
C.4%
D.8%
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