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If `"x"/"y"=4/5`, then the value of `(4/7+(2"y"-"x")/(2"y"+"x"))` is
Concept: undefined >> undefined
In a family, the father took one-fourth of the cake and he had three times more than the others had. The total number of family members is
Concept: undefined >> undefined
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A purse contains some coins consisting of rupees, fifty paise coins, and twenty-five paise coins. If coins are in the ratio of 2: 3: 10 and their total value is ₹72, the number of twenty-five paise coins will be
Concept: undefined >> undefined
The difference between the number of numbers from 2 to 100 which are not divisible by any other number except 1 and itself and the numbers which are divisible by at least one more number along with one and itself.
Concept: undefined >> undefined
The average of three prime numbers lying between 47 and 74 is 191/3. The greatest possible sum between any two out of the 3 prime numbers is
Concept: undefined >> undefined
Three consecutive positive even numbers are such that thrice the first number exceeds double the third by 2, the third number is
Concept: undefined >> undefined
Ten years ago, Sunil was half of Sudip's age. If the age of both at present is in the ratio of 3:4, what will be the total of their present age?
Concept: undefined >> undefined
P, Q, and R are three consecutive odd numbers in ascending order. If the value of three times P is 3 less than two times R. Find the value of R.
Concept: undefined >> undefined
Concept: undefined >> undefined
A piece of string is 40 centimeters long. It is cut into three pieces. The longest piece is 3 times as long as the middle-sized and the shortest piece is 23 centimeters shorter than the longest piece. Find the length of the shortest piece (in cm).
Concept: undefined >> undefined
Total expenses of a boarding house are partly fixed and partly varying linearly with the number of boarders. The average expense per boarder is ₹700 when there are 25 boarders and ₹600 when there are 50 boarders. What is the average expense per boarder when there are 100 boarders?
Concept: undefined >> undefined
You can collect rubies and emeralds as many as you can. Each ruby is worth ₹4 crore and each emerald is worth ₹5 crore. Each ruby weights 0.3 kg and each emerald weights 0.4 kg. Your bag can carry at the most 12 kg. What you should collect to get the maximum wealth?
Concept: undefined >> undefined
Reema, Ruchi, and Richa can make a painting in 15, 20 and 30 days, respectively. They undertake to make a painting for ₹ 810. The share of Reema exceeds that of Ruchi by
Concept: undefined >> undefined
If n = 1 + x, where x is the product of four consecutive positive integers, then which of the following is true?
II. n is a prime number
III. n is a perfect square
IV. n is odd number
Concept: undefined >> undefined
Three wheels can complete 40. 24 and 16 revolutions per minutes respectively. There is a green spot on each wheel that touches the ground at time zero. After how much time, all these spots will simultaneously touch the ground again?
Concept: undefined >> undefined
In a group of students in a class, 20 are in the debating club, 24 in the drama club and 27 in the recitation club. If 12 like drama and debate, 10 like recitation and debate, 14 like drama and recitation and 7 like all the three activities, then the total number of students in the class is
Concept: undefined >> undefined
The difference between the place values of two 7s in the numeral 69758472 is
Concept: undefined >> undefined
Which one of the following is not a prime number?
Concept: undefined >> undefined
The smallest 6-digit number exactly divisible by 111 is
Concept: undefined >> undefined
The largest 5-digit number exactly divisible by 91 is
Concept: undefined >> undefined
