Question
15 is divided in three parts which are in arithmetic
progression (A.P.) in such a way that the sum of their square is 83. Find the smallest part?Solution
Let the three numbers be (a - d), a, (a + d) a - d + a + a + d = 15 3a = 15 a = 5 (5 - d)² + 5² + (5 + d)² = 83 25 + d² - 10d + 25 + 25 + d² + 10d = 83 2d² = 8 d² = 4 d = ± 2 series = 3,5,7
Hill is related to mountain in the same way as
How is J related to H?
If 24 @ 6 = 28 and 39 @ 24 = 102, then 22 @ 16 = '?'.
From which of the following words we get a new meaningful word if we add the prefix ‘Un’?
If 64 # 98 = 96 and 37 # 67 = 63, then 44 # 95 = ?
Select the combination of letters that when sequentially placed in the blanks of the given letter series will complete the series.
_ K L _ N O J ...
Dog : Puppy :: Deer :Â ?
- Select the option that is related to the third term in the same way as the second term is related to the first term and the sixth term is related to the fi...
Given set: Â [99, 200, 301]
Select the combination of numbers that when placed sequentially in the blanks of the given series will complete the series.
6 _ 2 3 _ 1 _ _ 8 ...
Relevant for Exams:
