Three boys shared D 10,500.00 in the ratio 6:7:8. Find the largest share.
4000
5000
4500
3500
Correct answer is A
Total proportion is 6+7+8 = 21
6∗1050021 = 3000
7∗1050021 = 3500
8∗1050021 = 4000
The largest share is 4000
If a = 3 and b = -7, find the value of 5b+(a+b)2(a−b)2
0.51
0.91
-0.19
-0.51
Correct answer is C
5b+(a+b)2(a−b)2
= 5∗−7+(3+−7)2(3−−7)2
= −35+16102
= −19100 or -0.19
3n2p2
2n3p2
2n3p
3n22p2
Correct answer is A
M = nkp2
k → mp2n = 3x122
k = 32
: m = 3xn2p2
Find the 17term of the Arithmetic Progression (A.P):-6,-1,4
-91
-86
74
79
Correct answer is C
common difference d = -1 - [-6] → -1 + 6
d = 5; a = -6
Tn = a + (n-1)d
: T17 = -6 + (17 - 1) 5
→ -6 + (16)5
→ -6 + 80 = 74