6. Two dice are thrown together. What is the probability that the sum of the numbers on the two faces is divisible by 4 or 6?
a) 7/20
b) 7/18
c) 7/19
d) 7/15
Answer:
b) 7/18
Explanation:
The possible sums divisible by 4 are 4, 8, 12 (9 ways). The possible sums divisible by 6 are 6, 12 (5 ways). The union of these sets (4, 6, 8, 12) has 3 + 5 + 5 + 1 = 14 favourable outcomes. The probability is 14/36 = 7/18.
7. Fill in the blank.________ care could have prevented the catastrophe.
a) Little
b) A little
c) The little
d) Less
Answer:
b) A little
Explanation:
“A little” means “some,” giving the sentence a positive meaning: some care could have prevented the disaster. “Little” means “almost none,” which wouldn’t make sense here.
8. The first Indian satellite for serving the education sector is known as
a) SATEDU
b) INSAT B
c) EDUSAT
d) INSAT C
Answer:
c) EDUSAT
Explanation:
GSAT-3, known as EDUSAT, was an Indian communications satellite launched in 2004 exclusively to serve the educational sector.
9. The file extension of Excel spreadsheet is
a) .doc
b) .txt
c) .xls
d) .ppt
Answer:
c) .xls
Explanation:
Historically and commonly, Microsoft Excel spreadsheet files are saved with the “.xls” (or newer “.xlsx”) extension.
10. A sum of Rs. 800 amounts to Rs. 920 in 3 years at simple interest. If the interest rate is increased by 3%, it would amount to how much?
a) 986
b) 975
c) 992
d) 988
Answer:
c) 992
Explanation:
If the rate increases by 3%, the extra interest generated over 3 years is 800 * (3/100) * 3 = Rs. 72. The new amount will be the old amount plus the extra interest: 920 + 72 = Rs. 992.
