Q. 81 Nine man went to a hotel. 8 of them spent Rs.3 each over their meals and the ninth spent Rs.2 more than the average expenditure of the eight. The total money spent by all of them was-

Ans.29

Q.82 Evaluate:

Ans. 16

Q.83 In a college, the ratio of number of boys to girls is 8:5 if there are 200 girls, the total number of students in the college is-

Ans. 520

Q.84 The ratio between the present ages of P and Q is 6:7, If Q is 4 years old than P, what will be the ratio of the ages of P and Q after 4 years?

Ans. 7:8

Q.85 A is twice as good workman as B and together they finish a piece of work in 18 days. In how many days will B alone finish the work?

Ans. 54 days

Q.86 A car moves at 80 km/hr. What is the speed of the car in meter per second?

Ans. 22-2/9 M/Sec.

Q.87 Which is the descending order-

Ans. 7/9, 9/11, 8/9, 3/2

Q.88 X=?

3889+12.952-x=3854.002

Ans. 47.95

Q.89 In a class number of girl students is ....

Ans. 30

Q.90 If Rahul.....

Ans. 1 km/h

Q.91....

Ans. Oxidation

Q.92..........

Ans. Oxalic Acid

Q.93.........

Ans. Chlorine

Q.94 What is the name of the organelle in which photosynthesis takes place?

Q.87 Which is the descending order-

Ans. 7/9, 9/11, 8/9, 3/2

Q.88 X=?

3889+12.952-x=3854.002

Ans. 47.95

Q.89 In a class number of girl students is ....

Ans. 30

Q.90 If Rahul.....

Ans. 1 km/h

Q.91....

Ans. Oxidation

Q.92..........

Ans. Oxalic Acid

Q.93.........

Ans. Chlorine

Q.94 What is the name of the organelle in which photosynthesis takes place?

Ans. Chloroplasts

Q.95 Which is the largest artery in the human body?

Ans. Aorta

Q.96 Which process is involved in dialysis process?

Ans. Osmosis

Q.97 Organelle which is involved in protein synthesis?

Ans. Ribosomes

Q.98 Voltmeter is generally used to measure potential difference between two ends of the conductor electric circuit. Voltmeter is generally connected in electric circuit.

Ans. Parallel

Q.99 The size of the image formed by plane mirror is-

Ans. Equal to that of the object.

Q.100 Stars twinkle due to-