\(\frac{5}{8}\)
\(\frac{5}{16}\)
\(\frac{1}{2}\)
\(\frac{3}{8}\)
Correct answer is A
| x | 1 | 2 | 3 | 4 |
| 1 | 1* | 2* | 3* | 4* |
| 2 | 2* | 4* | 6* | 8 |
| 3 | 3* | 6* | 9 | 12 |
| 4 | 4* | 8 | 12 | 16 |
The numbers that are not greater than 6 are either less than 6 or equal to 6.
P(picking a number not greater than 6) = \(\frac{10}{16}\)
= \(\frac{5}{8}\)
In the figure, PQRS is a rectangle. If the shaded area is 72 sq. cm, find h.
12cm
10cm
8cm
5cm
Correct answer is D
From the diagram, PQRS is a rectangle
Area of shaded part = 72sq.cm
But 72 = 3h - 4 + 6h - 4 + 4h
= 72 - 16h - 8
= 16h - 72 + 8
=16h = 80
h = \(\frac{80}{16}\)
= 5cm
Solve \(5^{2(x - 1)} \times 5^{x + 1} = 0.04\)
\(\frac{1}{3}\)
\(\frac{1}{4}\)
\(-\frac{1}{5}\)
\(-\frac{1}{3}\)
Correct answer is D
\(5^{2(x - 1)} \times 5^{x + 1} = 0.04\)
\(5^{2x - 2} \times 5^{x + 1} = 5^{-2}\)
\(2x - 2 + x + 1 = -2\)
\(3x - 1 = -2 \implies 3x = -2 + 1 = -1\)
\(x = -\frac{1}{3}\)
Subtract 16418\(_9\) from 18630\(_9\).
1121\(_9\)
2112\(_9\)
2113\(_9\)
2211\(_9\)
Correct answer is D
18630\(_9\) - 16418\(_9\) = 2211\(_9\)
I
II
III
IV
Correct answer is D
No explanation has been provided for this answer.
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