Question
Average 20 numbers is ‘x’. If the average of first
12 numbers is 75.5 while average of last 5 numbers is 86.6 and 13th, 14th and 15th numbers are (3x - 25), (2x + 50) and 175 respectively. Find the 14th number.Solution
According to question, => 20x = 75.5 × 12 + 86.6 × 5 + 3x – 25 + 2x + 50 + 175 => 15x = 1539 => x = 102.6 Therefore, 14th number = 2 × 102.6 + 50 = 255.2
If the signs ‘+’ and ‘÷’ are interchanged, then which of the following equations can be correctly balanced?
Select the letter that can replace the question mark (?) in the following series.
L, J, H, F, D, ?
Complete the following series.
Z1, Y4, X9, ______
Which of the following numbers will replace the question mark (?) in the given series?
8, 18, 38, 78, 158, ?Â
In a certain code language, 'VAIN' is written as 'OKBY’ and 'VAST' is written as 'UUBY'. How will 'VERB’ be written in that language?
If ‘A’ means ‘÷’, ‘B’ means ‘–’, ‘C’ means ‘+’ and ‘D’ means ‘×’, then 32 C 19 B 44 A 11 D 2 = ?
...In a certain language code AMOUNG is written as DMLUQG. How will SETTLE be written in that language?
There are six friends Farhan, Anand, Chand, Sanjay, Maher, and Zaman each of different weight, 45, 56, 71, 65, 58 and 48 (all in kg) but not necessarily...
Select the figure which will come next in the following series.Â
Read the given statements and conclusions carefully and decide which of the conclusions logically follows from the statements.
Statements:
...