Question
 If the sum of two numbers is 33 and their difference
is 15, the smaller number isSolution
Let the numbers x and y.
x+y=33 …(1)
x-y=15 …(2)
x=(33+15)/2=24
y=(33-15)/2=18/2=9.
the smallest number is 9.
The following table shows the marks obtained by five students in three subjects:
Tarun and Saurabh together can complete a task in 10 days. Tarun and Reena together can finish the same task in 14 days. Reena and Saurabh together can ...
P earns Rs. 12,000 per month. He spends 40% of his income on rent, 25% of the remaining amount on food, and saves the rest. Q sav...
A class of 50 students has an average Chemistry exam score of 65. There average of boys and girls are 3: 2 in the class. Boys have an average score of 7...
If the price of a dozen eggs is ₹48, how much would 15 dozen eggs cost? Additionally, if the price increases by 25%, what will be the new cost of 15 d...
Determine the mean of the following observations:
24, 26, 22, 25, 20, 21, 24, 251, 4, 13, 36, 97, ?
The compound interest accrued after 2 years on an investment of Rs. 'x' at an annual interest rate of 20%, compounded annually, a...
Two pipes A and B can fill a tank in 15 hours and 20 hours, respectively. Another pipe C can empty the tank in 30 hours. If all three pipes are opened t...
Relevant for Exams:
