CAT Quantitative Aptitude | Quant Questions 2017- PaGaLGuY

Brass is an alloy of copper and zinc. Bromze is an alloy containing 80% copper, 4% zinc and 16% tim. a fused mass of brass and bromze is found to contain 74% copper, 16% zinc and 10% tin. The ratio of copper to zinc in brass is 

  • 50 n 75
  • none
  • 35 n 65
  • 33 n 67
  • 64 n36

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What is the highest power of 5 that can divide N=(22! + 17,894!)?

What does the encircled point mean? Can someone please explain?

A train is travelling towards bihar, a passenger at the front end of the first coach started walking towards the rear end of the last coach and reached there in 25 minutes . He then started walking back and reached the front end of the first coach after walking for 15 min . In the time in which he completed this round trip , the train had covered a distance of 80 km . find the speed of the train?#solution

A sugar and water solution of 100 L consists of 20% sugar. If solution is heated , water evaporates and sugar concentration becomes 80% of the solution . what amount of water has been evaporated??  dosto PLZ TELL M HOW TO DO IT THRU ALLEGATION

Find the non- integral solutions of the eqn:

3a+ 2b+ c= 197.

One line solution is (202C2- 3*101)/6. But what is the logic?

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Please help with question 19.

 the spring balance of a trader weighed 800 gm for a kg. What is the net result profit/loss percentage? 

Which is the best online classes for cat,Handa ka funda or Learning root.

Neeraj has a rectangular field of size 20X40 sq. mt. He has to mow the field with a mowing machine of width 1 mt. If he mows the field from extremes to the centre, then the number of rounds taken by him to mow half of the field will be?

A watermelon contains 85% water. 30g of water evaporates from the watermelon and now it contains 80% water. What was the original weight of watermelon?

Plz help no 20

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Method please

Q4 method please

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Can any1 please explain me the approach

Approach please

Help me to solve...