CAT Quantitative Aptitude | Quant Questions 2017- PaGaLGuY

Unit digit of 1273^122!

How do i calculate the price of barley

How do i calculate price of barley

95

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How to solve this..

If x^2 - (a^2+2) x +(a^2-5a+5)=1 has roots of opposite sign,  then find the range of a????

AApproach Alproqch

PApproach? Approach

Please explain this with solution...! There are three men X, Y and Z. They take the following times to complete a work. X alone takes 6 times the time taken by X, Y and Z together. Y alone takes 40 hours less than 7 times the time taken by all three together. Z alone takes 10 hours more than all three together. Find the time taken by X alone (given that all x on integers).

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How to solve this? Please explain as well

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Approach ?

Approach please

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A mixture of alcohol n water has 18% alcohol in it ,it is known dat if 8 lit of mixture is replaced with the water then the alcohol % decreases to 15% ,so tell how many lit of mixture should be replaced with water for alcohol % to decrease to 12 %?

TITA ques so no options...help plz... @shubahm @karancool93 @summi_arora

37! / 41 what's the remainder ...i have applied firstly remainder theorem and them willsons still getting wrong ans .....ans is 7 while i m getting 34 ...anyone help plz @summi_arora @karancool93 @shubahm

Find the sum of all the three-digit numbers having atleast one odd digit. 

 Q.  A computer-based aptitude test consists of two sections of 10 questions each. Each section consists of two subsections of 5 questions each. A student can attempt any of the two sections first but the section selected has to be completed first in order to move on to the next section. The student can attempt the subsections in each of the two sections in the similar manner only. If the questions in each of the subsections can be attempted in any order, in how many ways can he attempt all the 20 questions? 

Hi Any idea how are learn4exam videos??

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