Question
If the price of petrol rises by 20%, what percentage
reduction in consumption is required to keep the expenditure unchanged?Solution
Let initial price = Rs. 100 Increased price = 100 × 120% = Rs. 120 Difference = 120 – 100 = Rs. 20 Required percentage =20/120 × 100 = (50/3)%
Find the area of the triangle formed by the points A(1, 2), B(4, 6), and C(5, 1).
If log₅(x + 125) – log₅ x = 2, find x.
Let a=i+j​+k, b=2i+j​−k, and c=a×b. The angle between c and a is:
A boat takes 15 hours to travel 360 km downstream. If it takes 18 hours to travel 288 km upstream, Determine the speed of the str...
'P' increases the price of a shirt by 20%. If he reduces the discount percentage from 15% to 10%, his profit rises by Rs. 2400. Determine the profit or ...
Aman bought 21 notebooks for Rs.1250 from shop A and 12 notebooks for Rs.895 from shop B. What is the average price he paid per book?
Which of the following types of virus, also known as spacefiller virus,infects a file using empty sections?
The pie chart given below shows the percentage distribution of number of Samsung phones sold by a salesman during five different months out of total num...
A shopkeeper buys 100 apples at ₹5 each. 10 apples get spoiled. He sells the remaining apples at ₹6 each. What is his overall profit or loss percent...
Relevant for Exams:
