Q1. At their usual efficiency levels, A and B together finish a task in 12 days. If A had worked half as efficiently as she usually does, and B had wo...

Q1. The product of two positive numbers is 616. If the ratio of the difference of their cubes to the cube of their difference is 157 : 3, then the su...

Q1. A person invested a total amount of Rs 15 lakh. A part of it was invested in a fixed deposit earning 6% annual interest, and the remaining amount...

Q1. If the population of a town is p in the beginning of any year then it becomes 3+2p in the beginning of the next year. If the population in the be...

@sachin-yadav Ans – 10 If n is even, f(n) = n (n + 1)So, f (2) = 2(2+1) = 2 (3) = 6If n is odd, f(n) = n + 3f (1) = 1 + 3 = 4It is given that, 8 x ...

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@madhav Correct Answer 70 Meena scores 40 % in an examAfter review, she scores 50 % more => Increase of 50 % from 40 % = 40% + 20% = 60%She fail...

@sachin-yadav Ans – 0.5The idea that we use here is remarkably simple.We know, the product of rectangles formed by two intersecting chords are a...

@madhav Ans – 43 From observing the data given, we find that it is a closed 3 set Venn diagram.Let the three sports be F, T and C for Football, Te...

Q1. In a class, 60% of the students are girls and the rest are boys. There are 30 more girls than boys. If 68% of the students, including 30 boys, pas...

Q1. The number of distinct real roots of the equation(x + 1/x)2 - 3(x + 1/x) + 2 = 0 equals

@madhav Even numbers so b = 0 1100 1122 1144 1166 1188 2200 2222 2244 … … 9900 … … … … By adding 5(1100+...+9900) +9(22+44+66+88)/45 {Sinc...

@madhav Solution:-

@ujjwal-dwivedi Solution:- log45 = log4y × log6√5log45 ÷ log4y = logy5 = log6√5 = k (Let’s assume this as k)6k = √5 ---> On squaring this {6k}2...

@madhav SOLUTION a + (b+c)/2 = 5 ---> 2a + b + c = 10b + (a+c)/2 = 7 ---> 2b + a + c = 14Solving these two, we get b – a = 4b = a + 4Subst...