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# Quant Mix || 23.02.2021

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Question 1

If 1

^{3}+ 2^{3}+ ………. + 10^{3}= 3025, then 4 + 32 + 108 + …….. + 4000 is equal to :Question 2

In two alloys the ratios of copper to tin are 3 : 4 and 1 : 6 respectively. If 7 kg of the first alloy and 21 kg of the second alloy are mixed together to form a new alloy, then what will be the ratio of copper to tin in the new alloy?

Question 3

Two articles are purchased at Rs. 770. Both are sold at same selling prices, however from one article 20% profit is made while from another there is a loss of 10%. Find the overall profit or loss?

Question 4

What is that least number that must be added to the product 684 × 686 to make it a perfect square?

Question 5

A glass containing water has two holes. The first hole alone empties the glass in 9 minutes and the second hole alone empties the glass in 3 minutes. If water leaks out at a constant rate, how many minutes will it take if both the holes together empty the glass?

Question 6

Find the unit digit of, (1!)

^{99}+ (2!)^{98}+ (3!)^{97}+ ………………+ (99!)^{1}Question 7

If cos θ + sec θ = 2, the value of cos

^{6}θ + sec^{6}θ isQuestion 8

The greatest number among is?

Question 9

The radius of two concentric circles are 9 cm and 15 cm. If the chord of the greater circle be a tangent to the smaller circle, then the length of that chord is

Question 10

The length and breadth of a square are increased by 30% and 20% respectively. The area of the rectangle so formed exceeds the area of the square by

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Feb 23SSC & Railway

Posted by:

Naresh RawalMember since Jul 2020

Assistant Section Officer, Central Secretariat (AIR 203) - SSC CGL 2018 #Alumnus of IIT Dhanbad