Question
Average 20 numbers is ‘x’. If the average of first
12 numbers is 74.5 while average of last 5 numbers is 84.8 and 13th, 14th and 15th numbers are (4x - 45), (x + 50) and 183 respectively. Find the 14th number.Solution
According to question, => 20x = 74.5 × 12 + 84.8 × 5 + 4x – 45 + x + 50 + 183 => 15x = 1506 => x = 100.4 Therefore, 14th number = 100.4 + 50 = 150.4
More Average Questions
√? × 4 - 374 + 127 + 300 = 117
666(2/3)% of 30 - 116(2/3)% of 90 =?
23% of 8040+ 42% of 545 = ?%of 3000
35% of 840 + 162 = ? – 25% × 300
What will come in the place of question mark (?) in the given expression?
?% of (112 X 3 + 164) + 75 = 2 X 140 + 35
Simplify the following expression.
(3-3 × 3 + 3 ÷ 3 + 3 × 5) × 2 of 5 + (2 + 2 ÷ 2 + 2 × 2 - 2)
What will come in the place of question mark (?) in the given expression?
(243/9) X 5 - 112 = ? ÷ (24 - 13)
What will come in the place of question mark (?) in the given expression?
20% of 10% of 900 + 84/12 = ?2
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