Simplify

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Simplify: to get

A18

B22

C20

D24

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A train leaves Delhi at 4.10 PM and reaches Aligarh at 7.25

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A train leaves Delhi at 4.10 PM and reaches Aligarh at 7.25 PM. The average speed of the train is 40 km/h. What is the distance in km from Delhi to Aligarh

A130 km

B140 km

C120 km

D150 km

Akilesh Kharvi ? Nov 5 '2016 at 11:3

Total Time = 195 minutes
Speed = 40 km/hour => $40\over60$minute=$4\over6$
s = $d\over t$
$4 \over 6$ = $d \over 195$
d= $(4 *195) \over 6$
d= $780 \over 6$
d = 130

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A clock strikes once at 1 O' clock, twice at 2 O' clock

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A clock strikes once at 1 O' clock, twice at 2 O' clock, thrice at 3 O' clock and so on. What is the total number of striking in a day?

A156

B146

C136

D166

Akilesh Kharvi ? Nov 5 '2016 at 11:0

Answer is: 156
If it's the total number of strikes, then it's 1 + 2 +3....+ 12 all multiplied by 2, because we are calculating it for a day (24 hours).
For Calculating purpose
First 12 Hours is => 1 2 3 4 5 6 7 8 9 10 11 12
Next 12 Hours is => 12 11 10 9 8 7 6 5 4 3 2 1
-------------------------------------------------------------------------------------------------
Total 24 Hours is => 13 13 13 13 13 13 13 13 13 13 13 13 
------------------------------------------------------------------------------------------------
=>13 *12
=>156

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The Value of

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The Value of

A3.17

B3.2

C3.428

D0.321

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A sum of money at simple interest doubles in 7 years. It will become four times in

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A sum of money at simple interest doubles in 7 years. It will become four times in

A90 years

B18 years

C38 years

D21 years

Akilesh Kharvi ? Nov 5 '2016 at 10:48

Answer is : 21 years

let sum=x, s.i. = x

rate = $100 * x \over x * 7$ = $\frac{100}{7}\%$

now,

sum = x, s.i. = 3x, rate = $\frac{100}{7}\%$

time = $\frac{100 * 3x}{\frac{x * 100}{7}}\%$

$=> 7 *3 \%$

=21 %

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It is between 3 PM and 4 PM and the distance between the

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It is between 3 PM and 4 PM and the distance between the hour and the minute hands of colck is 18 minutes space. What time does the clock show?

A3.12 PM

B3.31 PM

C3.27 PM

D3.36 PM

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Out of an earning of Rs. 720, Ram spends 65 % . His

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Out of an earning of Rs. 720, Ram spends 65 % . His saving is

A350

B390

C252

D316

Akilesh Kharvi ? Nov 5 '2016 at 10:11

Answer is : 252
Out of an earning of Rs. 720, Ram spends 65 % .
So, Remainig percentage is 35%
35% of 720 is eqaul to 252

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