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# Equations

Two numbers are such that twice the greater number exceeds twice the smaller one by 18 and 1/3rd of the smaller and 1/5th of the greater number are together 21. The numbers are: a) (36, 45) b) (45, 36) c) (50, 41) d) (55, 46) Sir here both a and b satisfy the sum. ICAI OPTION IS B. but if I take greater no is y then option can be a SO HOW TO DIFFERENTIATE

Prasanth kumar Kamisetty

CA Foundation

11K+

03-Aug-20 09:16

31

Can you share exact question? Look like there is an error in options.

Suraj Lakhotia

03-Aug-20 09:18

Can you share exact question? Look like there is an error in options.

This is the question

Prasanth kumar Kamisetty

CA Foundation

11K+

03-Aug-20 09:55

Prasanth kumar Kamisetty

This is the question

Forgot to upload the photo Pls see here

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Prasanth kumar Kamisetty

CA Foundation

11K+

03-Aug-20 09:55

Greater number is 'y' and smaller number is 'x' then 2y-2x=18 first equation and 1/3x+1/5y=21 is second equation...... substitute value of y from first equation in the second equation. U will get 45, 36

sudha reddy

Moderator

03-Aug-20 10:04

Why shouldn't I take the other way round

Prasanth kumar Kamisetty

CA Foundation

11K+

03-Aug-20 10:08

Prasanth kumar Kamisetty

Why shouldn't I take the other way round

U can take other way round too........ x as higher and y as lower

sudha reddy

Moderator

03-Aug-20 10:11

sudha reddy Moderator

U can take other way round too........ x as higher and y as lower

But if this is the case in exam my option will be wrong

Prasanth kumar Kamisetty

CA Foundation

11K+

03-Aug-20 10:12

I 'm asking What if I do in the exam like this

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Prasanth kumar Kamisetty

CA Foundation

11K+

03-Aug-20 10:21

Prasanth kumar Kamisetty

I 'm asking What if I do in the exam like this

Its correct, the option is b as the answer has to greater number, smaller number

sudha reddy

Moderator

03-Aug-20 10:50

If the sum of the roots of the quadratyic equation ax2 + bx + c = 0 is equal to the sum of the squares of their reciprocals then a*a/ac + bc/a*a is equal to 2. -2. 1. -2

Prasanth kumar Kamisetty

CA Foundation

11K+

03-Aug-20 12:12

Prasanth kumar Kamisetty

fourth option is -1

sudha reddy

Moderator

04-Aug-20 15:40

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