106. Walking at 4 km an hour, a peon reaches his office 5 minutes late. If he walks at 5 km an hour, he will be 4 minutes too early. The distance of his office from the residence is—
Answer: 3 km
107. If the sides of a triangle are 8, 6, 10 cm respectively. Then its area is :
Answer: 48 cm2
108. In a river flowing at 2 km/h, a boat travels 32 km upstream and then returns downstream to the starting point. If its speed in still water be 6 km/h, find the total journey time.
Answer: 12 hrs
109. Average of a,b,c is p and ab+bc+ca=3,What is the average of a2,b2,c2?
a. 3p2 b. p2-2 c. 3p2-2 d. 9p2
Answer: 3p2-2
110. A man is 24 years older than his son. In two years, his age will be twice the age of his son. What is the present age of his son?
Answer: 22
111. Speed of a swimmer when moving in the direction perpendicular to the direction of the current is 16 km/h, speed of the current is 3 km/h. So the speed of the swimmer against the current will be (in km/h):
Answer: 10
112. The average of seven consecutive numbers is 26. The largest among these is
Answer: 29
113. . (450%of 250)/375 = ?
Answer: 3
114. 24 പേർ ദിവസേന 8 മണിക്കൂർ ജോലി ചെയ്താൽ 10 ദിവസം കൊണ്ട് ഒരു ജോലി തീരും .ദിവസേന 10 മണിക്കൂർ ജോലി ചെയ്ത് 6 ദിവസം കോണ്ട് ആ ജോലി തീർക്കാൻ എത്ര ആളുകൾ വേണം ?
Answer: 30
115. Find the missing number in the series 5, 10, 17, ___, 37, 50, 65
Answer: 26
116. Raju crosses a 600m long street in 5 minutes what is his speed in km per hour?
Answer: 7.2km/hr
117. The average of first 75 natural numbers is?
Answer: 38
118. A batsman make a score of 80 runs in his 16th innings and thereby increasing his average by 2 runs. Find his average after 16th innings
Answer: 50
119. Replace the question mark (?) in the following series? 241, 260, ?, 389, 465, 510
Answer: 298
120. Replace the question mark (?) in the following series? 8, 22, ?, 150, 382, 966