Let cheque amount be Rs X and Y paise. The confused bank teller cashed Rs Y and X paise. It is given that after buying a toffee for 50 paise, Shailaja...

a , ar , ar2 , ar3 , ar4 , ….. a + ar = 15 a ( 1 +r) = 15 a = 15/ ( 1+ r) …. (1) Now , 3(ar + ar2 + ar3 + ar4 +….) = a 3 [ar / (1-r)] = a 1 - r = 3r r...

Divisible by 12 means divisible by 3 and 4 both. to be divisible by 4 last two digits has to be divisble by 4. only combination : 76 _ _ _ _ _ _ _ 76 ...

Alternate Approach : Loss of ₹80 in 3 months so in 12 months => ₹320 Contract is 200 + shirt. So Shirt = 320 - 200 = ₹120

Let the price of the shirt be x . Total yearly income = 200 + x. Monthly = (200 + x)/12 9 months income = [(200 + x)/12] × 9 Now , 120 + x = [(...

B is multiplied by 25, LCM (A,B) remains unchanged so A has 53 in its prime factorization .When A is multiplied by 8 ,LCM (A,B) remains unchanged so B...

Highest possible marks : 60 Lowest possible marks : -20 So a total off 80 x 3+1=241 possible scores but scores such as 59+2/3, 59 + 1/3 and 58 + 1/3 a...

abc = 713 a = 7x , b = 7y , c = 7z x + y + z = 13 Total number of non negative integral solutions : 15C2 Solutions when two of them are equal ...

Common factors means Factors of HCF ( P,Q) HCF (P,Q) = 27 x 35 x 73 For perfect squares , we can select : 20, 22 , 24 , 26 in 4 ways 30 , 32 , 34 i...

Let the three consecutive odd integers be a-2 , a and a + 2 (a -2)2 + a2 + (a +2)2 = 3a2 + 8 Only option C gives remainder 2 when divided by 3 Hence ...

Hi Pulkit, let the average height of 22 toddlers be 3x . so the average height of two toddlers who left => x Sum of the heights of 22 toddlers = 66...

Take 200ml of first solution , 300 ml of 2nd solution and 100p ml of third solution : Now , solve the following equation 20 + 60 + 30p = (23/100) ( 20...

Original Cost : 18 Cost of raw material used : 1/3 of 18 = 6 so , raw material : wages = 6 : 12 Cost of raw material increasesd by 3 : 7 so New cost o...