Express the square root of 0.000144 in the standard form
1.2 x 10-4
1.2 x 10-3
1.2 x 10-2
1.2 x 10-1
Correct answer is C
\(\sqrt{0.000144}\) = 0.012
= 1.2 x 10-2
Find the value to which N3000.00 will amount in 5 years at 6% per annum simple interest
N3,900.00
N3,750.00
N3,600.00
N3,300
Correct answer is A
A = P + I
p + \(\frac{PRT}{100}\)
A = N3000 (1 + \(\frac{6 \times 5}{100}\))
= N3000(1 + 0.3)
A = N3000 (1.3)
= N3,900.00
Arrange the following numbers in descending orders of magnitude: 22three, 34five, 21six
21six, 22three, 34five,
21six, 34five, 22three
22three, 34five, 21six
34five, 21six, 22three
Correct answer is D
22three, 34five, 21six = (2 x 3)(2 x 3o), (3 x 51) = (4 x 50), (2 x 61) + (1 x 60)
= (6 + 2), (15 + 4), (12 + 1) = 8ten, 29ten, 13ten in descending order
29ten, 13ten, 8ten = 34five, 21six, 22three
2x + y - z
2x + z - y
x + y - 2x
x + x - y
Correct answer is B
log (\(\frac{28}{3}) = \log (\frac{7 \times 4}{3})\)
= log 7 + log 4 - log 3
log 7 + log 22 - log 3 = log 7 + 2 - log 3
= z + 2x - y
= 2x + z - y
N8976
N5049
N140.25
N31.17
Correct answer is B
N1122 = $8; x = $36
x x $8 = N1122 x $36
\(\frac{N1122 \times $36}{$8}\) = x
x = N5049