Official Quant thread for CAT 2013

166

hi guys,

I am a CAT 2013 Aspirant this is my 1st attempt and have joined BYJU's Classes in Bengaluru. I hav got all d study material bt i doubt whether its enough r nt. And m also in a dilemma about there test series should i join TIMES test series and also get TIMES Study material r BYJU's materials & test series r enough. I have Arun Sharma & Quantum CAT fr Quant what i shud buy fr DI , LR & verbal. Please help.

I used the condition p(p-3)

The no (2n!) is divisible by ?

I. (n!)^2
II.((n-1)!)^2
III. n!*(n+1)!
A. I & II only
B. II & III only
C. I & III only
D. I,II & III

63! divided by 71 .what is the remainder ? please post the approach..!!!!!!!!!!!!!!!!!!!!

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  • 70
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  • 63

0 voters

how many factors of 2^30 *3^20 gives a remainder of 1 when divided by 5 ? plzzzzzzzzz postthe approach

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  • 153
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Remainder of 7^50 divided by 90



Find the sum of cubes of first 10 odd natural numbers.

Q4

QuantExpert - Q.O.D


Find the sum of all the possible values of m. given that m^n= 1/8 given and m=3/2(log(subscript2)m-3) approach pls

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  • 3
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  • 6

0 voters

THE cost of the bars of a precious metal varies directly as the square of the weight of the bar. metal bars of weight in the ratio 4:5:6 were bought from three different places and melted together to form a big bar. the big bar costed 4440rs more than the total cost of the metal bars. what was the cost of the lightest bar.......????? please answer soon with full solution????

The earnings of A and B are in the ratio 3:7 and that of B and C is 4:9 and that of D and C is 7:6. if the sum of the earnings of A,B,C and D together is 52950rs, then what are the earnings of D???? HOW TO SOLVE???

A total of 1540 steel balls are stacked in a pile. The first layer has a ball, the second has three balls, the third has six balls, the fourth has 10 balls and so on. How many horizontal layers are there in the pile?

Neha takes a loan at 20% p.a. with interest being compounded annually. The loan is to be repaid in ten equal annual instalments of र7,200 each. After paying the eighth instalment (at the end of the eighth year), the rate of interest was reduced to 10% for the ninth and tenth years. Now, if Neha wants to repay the remaining loan (along with the interest) in a single payment at the end of the ninth year, what is the amount that she must pay?

र13,100

र12,600

र12,100

र13,200

Find the sum of all the multiples of 3 or 5 below 1000.

There are 8 points lying on a plane such that no two of the lines joining them are parallel and no three are concurrent except at the given points. If all the possible lines are drawn passing through every pair of these points, what is the number of points of intersection of the lines excluding the original 8 points?

210

120

250

160




The number, 1406357289, is a 0 to 9 pandigital number because it is made up of each of the digits 0 to 9 in some order, but it also has a rather interesting sub-string divisibility property.

Let d1 be the 1st digit, d2 be the 2nd digit, and so on. In this way, we note the following:

d2d3d4=406 is divisible by 2

d3d4d5=063 is divisible by 3

d4d5d6=635 is divisible by 5

d5d6d7=357 is divisible by 7

d6d7d8=572 is divisible by 11

d7d8d9=728 is divisible by 13

d8d9d10=289 is divisible by 17

Find the sum of all 0 to 9 pandigital numbers with this property

😠

Find the number of circles that can be drawn out of 10 points out of which 7 are collinear

a)35
b)85
c)70
d)124

ABC is a triangle such that AB=6 cm , AC=12 cm and angle A= 60 degree. AD is the angle bisector of A. Find AD ?

In England the currency is made up of pound, £, and pence, p, and there are eight coins in general circulation:

1p, 2p, 5p, 10p, 20p, 50p, £1 (100p) and £2 (200p).

It is possible to make £2 in the following way:

1£1 + 150p + 220p + 15p + 12p + 31p

How many different ways can £2 be made using any number of coins?