Question
Evaluate: 168 ÷ 12 × 5 + 190 – 20% of
450Solution
ATQ,
168 ÷ 12 × 5 + 190 – 20% of 450
= 168 ÷ 12 × 5 + 190 – (1/5) of 450
= 168 ÷ 12 × 5 + 190 – 90
= 14 × 5 + 190 – 90
= 70 + 190 – 90
= 260 – 90
= 170
If a person loses Rs 20 by selling an item for Rs 140 then what is the loss percentage?
If (a + b) = 8 and ab = 10, then find the value of (a2 + b2).
Find the simplified value of the following expression:
(16.25 × 24 + 7 × √36) ÷ 23 + 3.75 × 16 – 37 × 2 + 7.5
...- If 6x - 3y = 9, and 9xy = 18, then what is the value of 6x + 3y?
From the top of a building, the angle of depression to a point on the ground is 45 degrees. If the building is 50 meters high, how far is the point from...
Which of the following software is also known as the end-user program?
If 5 sin x - 12 cos x = 0, find the value of tan x.
A sphere has a diameter of 10 cm. A cone with a height of 10 cm and a radius of 5 cm is removed from the sphere. What is the volume of the remaining solid?
P can do a piece of work in 20 days, Q can complete double the work in 40 days and R can do the work in 30 days. If all of them together earn Rs. 2400, ...
- Which type of attack is carried out by an individual who has authorized access to a system?
