Question
Akash bought an item for Rs. 250
and marked it ____ above the cost price and gave a discount of ____ and made a profit/loss of Rs. ____. The values given in which of the following options will fill the blanks in the same order in which it is given to make the above statement true: I. 20%, 12%, 14 II. 30%, 18%, 16 III. 24%, 20%, 2Solution
ATQ,
For I: Marked price of the item = 1.2 × 250 = Rs. 300 Selling price of the item = 0.88 × 300 = Rs. 264 Profit = 264 – 250 = Rs. 14 So, I can be the answer. For II: Marked price of the item = 1.3 × 250 = Rs. 325 Selling price of the item = 0.82 × 325 = Rs. 266.5 Profit = 266.5 – 250 = Rs. 16.5 So, II can’t be the answer. For III: Marked price of the item = 1.24 × 250 = Rs. 310 Selling price of the item = 0.80 × 310 = Rs. 248 Loss = 250 – 248 = Rs. 2 So, III can be the answer.
if 8 sin 2 x + 3 cos 2 x = 4  then find tan x
Find the value of `1/2`  cosec 10  - `2/(cosec 70)`  ?
If cos² x + sin x = 5/4, then find the value of 'sin x'.
If α means +, β means -, ɣ means x, θ means ÷ then 30 θ 10ɣ 5α 10β20 is
Find the value of the given trigonometric expression:
(sin 10°cos 80° + cos²10°) × sin 30° + (cos 60°tan 45°) × sec 60°
...If x = (sin 30 ° + cos 30 ° )/sec 60 ° , then find the value of 4x.
- If 2cosec 2  A – cot 2 A = 5 and 0 o < A < 90 o , then find the value of ‘A’.
- If sin(A + B) = √3/2 and cos(A + 2B) = 1/2, where 0° < A, B < 90°, then find the value of tan(2A).
If θ is an acute angle and sin θ + cosec θ = 2, then the value of sin2 θ + cosec2 θ is: