Question
In how many ways can the letters of the word ENGINEERING
be arranged?Solution
There are 11 letters in the word ENGINEERING and E occurs 3 times, I occurs 2 times, N occurs 3 times and G occurs 2 times Thus, the required number of arrangements = (11!)/(3! x 2! x 2! x 3!) = 2,77,200 ways
If A:B:C = 2:3:8 and (C - B) = 130, then find the product of 'C' and 'A'.
A starts a business with Rs. 6600. After 3 months, B joins with A as his partner. After one year the profit is divided in the ratio 4:5. What is B&r...
 If a student distributes sweets in the ratio of 1/2:1/3:1/4:1/5:1/6 among five of his friends A, B, C, D and E, then the total number (minimum) of swe...
Two vessels, A and B, contain mixtures of milk and water in the ratios 11:9 and 13:37, respectively. The quantities of mixtures in A and B are in the ra...
- A sum of Rs. 9,450 is split among P, Q, and R in the ratio 3:2:1. What is the share of Q?
- Find the third proportion of 15.2 and 19.
Three positive numbers are in the 5:6: 7 ratio and the sum of their squares is 13,310. Find the sum of the three numbers
Solution A contains 10% acid and solution B contains 30% acid. In what ratio should solution A be mixed with Solution B to obtain a mixture with 25% acid?
Ratio of the number of belts to that of purses in a store is 2:5. The ratio of the selling price of each belt to that of each purse is 4:3. If revenue g...
Among 132 examinees of a certain school, the ratio of successful to unsuccessful students is 9 : 2, Had 4 more students passed, then the ratio of succes...
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