Mathematics & Logic
939 questions found
421
A bottle contains 10 liters of Milk. 2 liters of Milk is replaced by Water. Again 2 liters of mixture is replaced by Water. What is the ratio of Milk to Water in the final mixture?
Hard
Mathematics & Logic
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422
If x varies as y, and y = 4 when x = 12, find the value of x when y = 15.
Easy
Mathematics & Logic
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423
A sum of ₹2,500 is distributed among X, Y, and Z in the ratio 1/2 : 3/4 : 5/6. What is the difference between the maximum share and the minimum share?
Medium
Mathematics & Logic
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424
The ratio of a two-digit natural number to a number formed by reversing its digits is 4:7. How many such pairs of numbers exist?
Hard
Mathematics & Logic
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425
Ajay and Binoy invest in a business. Ajay starts with ₹5000. After 3 years, Binoy joins with ₹3000 and Ajay withdraws 1/5th of his capital. At the end of 12 years, what is the ratio of their profits?
Hard
Mathematics & Logic
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426
An amount of money is distributed among A, B, C, and D in the proportion 5:2:4:3. If C gets ₹1000 more than D, what is B's share?
Easy
Mathematics & Logic
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427
The ratio of the number of boys and girls in a college is 7:8. If the percentage increase in the number of boys and girls is 20% and 10% respectively, what will be the new ratio?
Medium
Mathematics & Logic
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428
Rahul has coins of denomination ₹1, 50p, and 25p in the ratio 12:10:7. If the total worth is ₹112.5, how many 25p coins does he have?
Medium
Mathematics & Logic
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429
In what ratio must a 40% acid solution and a 70% acid solution be mixed to obtain a 50% acid solution?
Medium
Mathematics & Logic
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430
Two numbers are in the ratio 2:5. If 6 is added to both, their ratio changes to 4:7. What is the larger number?
Medium
Mathematics & Logic
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431
If A:B = 2:3, B:C = 4:3, and C:D = 4:5, what is the ratio A:B:C:D?
Hard
Mathematics & Logic
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432
If a sum of ₹5783 is divided among Aman, Balan, and Chintan such that after deducting ₹28, ₹37, and ₹18 from their shares respectively, the remaining amounts are in ratio 4:6:9, find Aman's share.
Hard
Mathematics & Logic
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433
In a book store, the ratio of English to Hindi books is 7:2. If there are 1512 English books and the ratio becomes 15:4 after adding some English books, how many books were added?
Medium
Mathematics & Logic
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434
If a person X wants to distribute pens among 6 children such that A gets twice of B, three times of C, four of D, five of E, and six of F, what is the minimum number of pens needed for each to get an even number?
Hard
Mathematics & Logic
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435
What is the new ratio of seats in Mathematics, Physics, and Biology in a school if the original ratio 5:7:8 is increased by 40%, 50%, and 75% respectively?
Medium
Mathematics & Logic
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