Sum of squares of three consecutive numbers is 1325. 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 = 1325 => x2 – 2x + 1 + x2 + x2 + 2x + 1 = 1325 => 3x2 = 1325 - 2 => x2 = 1323/3 => x2 = 441 => x = 21 Required sum = (21 – 1) + (21 + 1) = 42
Find the missing term?
Select the number that will replace the question mark (?) in the following series.
35, 38, 43, 50, 61, 74, ?
Select the missing number from the given responses.
Select the related word/letters/number from the given alternatives.
LHX: OEA : : PFT : ?
Find the missing number by analysing the pattern followed by the numbers in each row.
Find the missing term.
Study the given pattern carefully and select the number that can replace the question mark (?) in it.
In the following question, select the missing number from the given alternatives.
45, 15, 60, 75, 135, ?
Select the number from the given option that can replace the question mark (?) in the following series:
32, 16, 24, 60, ?, 945
Select the number from among the given options that can replace the question mark (?) in the following table.
