• Placement Questions
• /
• IES EC
• /
• Numerical Ability

IES EC Numerical Ability Questions with Answers : Unsolved Question

(#M40154899) IES EC QUESTION Keep an EYE

202.Tim and Elan are 90km away from each other .they are starting to move towards each other simultaneously ,tim at speed 10kmph and elect at 5kmph ,if every hr they double the speed ,what is distance that tim will pass until he meets elan? [TCS-2012]
(A)45 (B)60 (C)20 (D)80

Asked In IES EC S B HARISH (9 years ago)

Unsolved Read Solution (1)

Is this Puzzle helpful?   (0)   (0) Submit Your Solution

(#M40106475) IES EC QUESTION series Keep an EYE

Below given are two formulae for long summation.
1) 1 + 2 + 3 + 4 + ................ + n = n(n+1)/2
2) 1^2 + 2^2 + 3^2 + 4^2 + ........ + n^2 = 1/6 n(n+1)(2n+1)
The value of
(1% of 2 + 2% of 3 + 3% of 4 + ........ + 99% of 100) will be

Asked In IES EC A M ANKIT KALLURAYA (9 years ago)

Unsolved Read Solution (5)

Is this Puzzle helpful?   (0)   (0) Submit Your Solution Algebra