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Questions  >>  Olympiad-Math  >>  Class 6  >>  Math  >>  Percentages
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Q)

At 3.40, the hour hand and the minute hand of a clock form an angle of


( A ) 120
( B ) 135
( C ) 130
( D ) 125

3 Answers

Comment
A)
130 answer is correct
 
Comment
A)
130 is correct answer or not
Yes, that is correct
 
Comment
A)
Solution :
Angle traced by hour hand in 12 hrs $=360^{\circ}$
Angle traced by 1t in $\large\frac{11}{3}$$hrs = \bigg[\large\frac{360}{12} \times \frac{11}{3}\bigg]$
$\qquad= 110^{\circ}$
Angle traced by minute hand in 60 mins $=360^{\circ}$
Angle traced by it in 40 min $=\bigg[\large\frac{360}{60} $$ \times 40 \bigg]$
$\quad= 240^{\circ}$
Required angle $=[240 -110]^{\circ}$
$\qquad= 130^{\circ}$
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