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Let number of students in first school = x 60x/100+30 =x x-60x/100=30 40x/100=30 x=75 Number of passed students = 75 -30 = 45 Number of students in second school = 75 + 25 = 100 Number of passed students = 45 + 20 = 65 Pass percentage of the latter school = 65%
Electrostatic precipitator is used to control —
The breakdown of pyruvate to give carbon dioxide, water and energy takes place in
Before X-ray examination (coloured X-ray) of the stomach, patients are given suitable salt of barium because
Consider the following statements regarding antibiotics
1. They are used to destroy disease-causing bacteria.
2. They can be applied to th...
Bulb is an underground condensed
Which of the following metals can displace hydrogen from dilute acids?
Consider the following three nuclear reactions:
Wh...
Two capacitors of capacitance 6 µF and 3 µF are connected in series across a battery of constant voltage.
The charges stored on the two capaci...
A body falls freely from a height of 80 m. Time taken to reach the ground is:
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