The greatest number of four digits that have 144 for their HCF is___________?
A. 9930
B. 9903
C. 9935
D. 9936
Explanation:
144) 9999 (69
9936
——–
63
9999 – 63 = 9936
A. 9930
B. 9903
C. 9935
D. 9936
Explanation:
144) 9999 (69
9936
——–
63
9999 – 63 = 9936
A. 4:8
B. 1:4
C. 6:2
D. 3:1
A. 40 %
B. 32 %
C. 22 %
D. 8 %
Explanation:
Let A = set of students who play football and
B = set of students play cricket.
Then n(A) = 40, n (B) = 50 and
n(A U B) = (100 – 18) = 82
n(A U B) = n(A) + n(B) – n(A ∩ B)
n(A∩B) = n(A) + n(B) – n(AUB) = (40 + 50 -82) = 8
Percentage of the students who play both = 8%
A. 5073
B. 5016
C. 5054
D. 5035
A. 2 3/2
B. 2 2/3
C. 2.5
D. 3
Explanation:
100*(20/100) = 20 — 10
? — 1 => Rs.2
100 — 80
? — 2 => Rs.2.5
A. Rs. 8000
B. Rs 10000
C. Rs. 18000
D. Rs. 81000
Explanation:
Value after 2 Years = Rs[100000 × (1 – 10/100)2]
= Rs (100000 × 0.9 × 0.9) = Rs 81000
A. neither profit nor loss
B. 1%
C. 2%
D. 3%
Explanation:
Profit on first article = 20% of 1000 = 200.
This is equal to the loss he makes on the second article. That, is he makes neither profit nor loss.