Question
The sum of HCF and LCM of two numbers is 425. If the LCM is
16 times the HCF, and one number is 25, find the second.Solution
ATQ,
Let HCF = x
LCM = 16x
x + 16x = 425
⇒ 17x = 425
⇒ x = 25
Now,
25 × y = 25 × 16 × 25
⇒ 25y = 10000
⇒ y = 10000 ÷ 25 = 400
An amount was invested at simple interest for 2 years. If the rate had been 8% higher, the interest would have increased by Rs. 320. What is the princip...
- Hitesh divided Rs. 20,100 into two portions. He invested the first portion at 6% simple interest per annum for 5 years, and the second portion at 20% simpl...
Jaideep invested two equal sums at 12% simple interest p.a. for 8 years and 10 years respectively. If the difference in interest earned is Rs.14,...
A certain sum at certain rate % per annum simple interest becomes Rs 6300 in 2 years and Rs 6750 in 5 years. The principal and rate of interest are - Â ...
A sum of Rs. 15,000 is invested in SIP 'J' which offers 6% p.a. simple interest for 8 years. The interest received from SIP 'J' is invested in SIP 'K' w...
if the interest is compounded half-yearly, calculate the amount when the principal is Rs.4000, the rate of interest is 22%.solve the question
Raj invested equal amounts in two schemes x and y at compound interest. In scheme x, the rate of interest was 8% per annum and in scheme y the rate of i...
The simple interest and compound interest (compounded yearly) on a sum Rs. ‘P’ at ‘r%’ p.a. for two years are Rs. 18,000 and Rs. 19,350, respect...
A person invested Rs. P on simple interest at the rate of 15% for 5 years, and he invested Rs.(P + 100) at 10% compound interest for 2 years. The total ...
John invested Rs. (P-4000) and Rs. (P+5000) in scheme A and scheme B respectively. The rate of interest in scheme A and B is (R+1)% and (R-1)% respectiv...