Sum of squares of three consecutive numbers is 974. Find the sum of first and third number.
Let the numbers be (x – 1), x and (x + 1) => (x – 1)2+ x2+ (x + 1)2= 974 => x2– 2x + 1 + x2+ x2+ 2x + 1 = 974 => 3x2= 974- 2 => x2= 972/3 => x2= 324 => x = 18 Required sum = (18 – 1) + (18 + 1) = 36
A cone is formed by rotating an equilateral triangle about its altitude. Fill in the blank.
Equilateral triangle : Cone = Square: ____
The missing term of the series isÂ
A2, C5, E8, G11, ____________
Penicillium is a _____________.
8 workers working for 8 days make 8 motor cycles. Then how many motor cycles would be made by 4 workers if they work for 4 days? Assume equal efficiency...
Match List I with List II
Choose the correct answer f...
The President of India can grant pardon to a convict sentenced to death vide:
Who is the chairperson of 15th finance commissionÂ
A pen whose cost price is Rs 16 is marked a sale price 25% higher. It is then discounted by 25%. The net price of the pen isÂ
Consider the following statements :
1.     Kerala as well as Ladakh regions were influenced by Chinese and Arab traders.
2.    Â...
The Union of India has no official