Fraction between 2/5 and 4/9 is :
(1) 3/7 (2) 2/3 (3) 4/5 (4) 1/2 Solution: 2/5 and 4/9 = 0.40 and 0.44 Fraction between these two = 3/7= 0.42 Then the answer is option (1)
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The sum of three consecutive odd natural numbers each divisible by 3 is 72. What is the largest among them?
Solution Let the number be 3x,3x+3 and 3x+6 3x+3x+3+3x+6=72 ⇒9x+9=72 ⇒9x=72-9=63 ⇒x=63/9=7 Largest number: =3x+6=3*7+6=27 Than the answer is 27.
(325+326+327+328) is divisible by : (1) 11 (2) 16 (3) 25 (4) 30
Solution: 325+326+327+328 = 325(1+3+32+33) =325(1+3+9+27) =325*40, Which is clearly divisible by 30.
(325+326+327+328) is divisible by : (1) 11 (2) 16 (3) 25 (4) 30 Read More »
Which number in the sequence 8, 27, 64, 100, 125, 216, 343 Is wrongly written?
Solution: In the given sequence all then numbers except 100 are perfect cubes of natural numbers. As , 8=23,27=33,64=43, 125=53,216=63,343=73 Than is correct answer = 100
Which number in the sequence 8, 27, 64, 100, 125, 216, 343 Is wrongly written? Read More »
Which of the following number is not divisible by 18?
(1) 54036 (2) 50436 (3) 34056 (4) 65043 Solution: (4) A number will be exactly divisible by 18 if it is divisible by 2 and 9 both.Clearly 65043 is not divisible by 2.= Required number = 65043
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