Question
Vishal has certain sum of money with him. He invested
80% of the sum in scheme ‘X’ offering 15% p.a. simple interest for 8 years and received Rs. 2640 as interest. He then invested the amount received from scheme ‘X’ in scheme ‘Y’ for 2 years at 50% p.a., compound interest compounded annually. Find the amount received by Vishal from scheme B. ÂSolution
Let, Vishal invested Rs. x in scheme ‘X’ According to the question, {(x × 15 × 8)/100} = 2640 Or, x = 2640/1.2 Or, x = 2200 Total sum Vishal had = 2200/0.8 = Rs. 2750 Amount received from scheme ‘X’ = 2200 + 2640 = Rs. 4840 Amount received from scheme ‘Y’ = 4840(1 + 50/100)2 = Rs. 10890
tan 20Ëš x tan 23Ëš x tan 67Ëš x tan 70Ëš = ?
If 0 ≤ θ ≤ 90°, and sin(2 θ +50°) = cos (4 θ + 16°), then what is the value of θ (in degrees)?
If cos θ + sec θ = √2, then the value of cos³ θ+ sec³ θ is:
If sec a + tan a = 3/2, find the value of sin a.Â
A tree of height 'h' metres is broken by storm in such a way that its top touches the ground at a distance of 'x' metres from t...
If cos 2A = 7, then find cos A
Find the value of `1/2`  cosec 10  - `2/(cosec 70)`  ?
- If sin 2a = (3/4), then find the value of (sin a + cos a).
If tan A = 1, then what will be the value of sec² A + cosec² A?