Differentiation

answered on 11-Aug-20 12:40

The question is in the picture

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U can even simplify by using square on both sides and then you will get (y/x+x/y)=34 and then differentiate

lohita Prava

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Time value of money

answered on 07-Aug-20 07:59

I got answer 1yr 6months and icai answer 1yr 1months See where did I do wrong

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Thanks

Prasanth kumar Kamisetty

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MCQ QUESTION

answered on 07-Aug-20 19:05

There is an error in the below mcq question

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Thank you sir.....

Soumya A

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Eqns

answered on 05-Aug-20 11:07

There are some additional questions. Are these questions important for exam

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We have covered all varieties of questions in class. It will definitely be more helpful for you in the exam if you can solve rest of the problems in the Study Material

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Equations

answered on 04-Aug-20 14:33

Sir / ma'am how to solve this question

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It's ok

Soumya A

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Equations

answered on 04-Aug-20 10:17

Sir/ma'amHow to solve when mean proportion is given

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Let numbers be x& y x+y = 45 and square root of xy = 18 and then substitute value of y i.e. y=45-x in the second equation i.e. xy=18^2=324. Then u will get 36 & 9

Soumya A

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Eqns

answered on 06-Aug-20 08:56

Mam actually dsir did using other formula.But I want to know the wrong in this formula

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We have some of roots as -b/a we do not know difference of roots so cannot apply what you have done and also U have take a^3-b^3 as (a-b)^3+3ab(a-b) but u took -3ab

Prasanth kumar Kamisetty

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Equations

answered on 04-Aug-20 15:40

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

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Please solve it and check

Prasanth kumar Kamisetty

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Equations

answered on 02-Aug-20 15:34

The product of two numbers is 3200 and the quotient when the larger number is divided by the smaller is 2.The numbers are a) (16, 200) b) (160, 20) c) (60, 30) d) (80, 40) How to do without option verification

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When you solve these kind of problems by assuming variables as x & y, if you do not have two complete equations of x & y , you will get multiple answers . In this case if we assume all numbers are whole numbers and there are no decimals then xy = 3200 & x/y = 2; from equation x/y = 2 , x = 2y which can be substituted in equation 1 to get 2yy = 3200 and y = 40 => x = 80 . But there is no need to do all this when you already have options.

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Equation

answered on 02-Aug-20 15:36

The sum of the digits of a two digit number is 10. If 18 be subtracted from it the digits in the resulting number will be equal. The number is a) 37 b) 73 c) 75 d) none of these numbers. How to do above sum without option verfication

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using options is simpler as it saves time and helps a student spend more time on some other questions. x + y = 10 x + 10y - 18=? In this there is no second equation so it cannot be solved using equations as x & y can have multiple answers

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