91. A car travels at a speed of 60 km/h. How much distance will it cover in 45 minutes? 30 km 40 km 45 km 50 km ETEA MCQS.COM SST BIO/CHEMSITRY
89. If x2?7x+12=0, then possible values of x are: 3 and 4 2 and 6 -3 and -4 -2 and -6 ETEA MCQS.COM SST BIO/CHEMSITRY
88. A student scores 60% in a test. If he scored 45 marks, what were the maximum marks for the test? 60 75 80 90 ETEA MCQS.COM SST BIO/CHEMSITRY
87. If 3 men can build a wall in 10 days, how many days will 5 men take to build the same wall? 5 6 8 15 ETEA MCQS.COM SST BIO/CHEMSITRY
86. The mean of 5 observations is 8. If each observation is multiplied by 3, the new mean will be: 8 11 24 40 ETEA MCQS.COM SST BIO/CHEMSITRY
85. A square park has an area of 400 square meters. If a person walks around its perimeter at a speed of 2 m/s, how long will it take them to complete one round? 20 s 40 s 80 s 100 s ETEA MCQS.COM SST BIO/CHEMSITRY
84. The product of two consecutive even integers is 168. What is the sum of these integers? 24 26 28 30 ETEA MCQS.COM SST BIO/CHEMSITRY
83. A worker’s salary was first increased by 10% and then decreased by 10%. If his original salary was Rs. 20,000, what is his current salary? Rs. 19,800 Rs. 20,000 Rs. 20,200 Rs. 20,400 ETEA MCQS.COM SST BIO/CHEMSITRY
82. The ratio of the angles of a triangle is 1:2:3. What is the measure of the largest angle? 30? 60? 90? 120? ETEA MCQS.COM SST BIO/CHEMSITRY
81. If P is inversely proportional to Q, and P=10 when Q=5, what is P when Q=2? 4 12.5 25 50 ETEA MCQS.COM SST BIO/CHEMSITRY
80. A bag contains 4 green pens and 6 black pens. If two pens are drawn randomly without replacement, what is the probability that both are green? 15-Feb 5-Jan 25-Apr 25-Jun ETEA MCQS.COM SST BIO/CHEMSITRY
79. The average of 7 numbers is 12. If two numbers, 10 and 14, are removed, what is the new average of the remaining numbers? 9 10 11 12 ETEA MCQS.COM SST BIO/CHEMSITRY
78. A rectangular garden has a length of 15 m and a width of 8 m. If the cost of planting grass is Rs. 50 per square meter, what is the total cost? Rs. 6000 Rs. 8000 Rs. 9000 Rs. 10000 ETEA MCQS.COM SST BIO/CHEMSITRY
77. In a class, 40% of the students are girls. If there are 30 boys, what is the total number of students in the class? 40 50 60 75 ETEA MCQS.COM SST BIO/CHEMSITRY
75. A car covers a distance of 360 km in 6 hours. What is its speed in meters per second (m/s)? 10 15 20 25 ETEA MCQS.COM SST BIO/CHEMSITRY
74. The sum of the ages of A and B is 45 years. If A is 5 years older than B, what is B’s age? 20 25 30 35 ETEA MCQS.COM SST BIO/CHEMSITRY
