The solar heat energy reaching the earth each year is more than:
A) 1000 times than the world’s energy need
B) 10000 times than the world’s energy need
C) 20000 times than the world’ energy need
D) 15000 times than the world’s energy need
2 × 2 + 2
A) 2
B) 3
C) 4
D) 5
Explanation: To evaluate the expression 2 × 2 + 2 ÷ 2, we need to follow the order of operations, which is typically represented by the acronym PEMDAS (Parentheses, Exponents, Multiplication and Division from left to right, and Addition and Subtraction from left to right).
First, we perform the division: 2 ÷ 2 = 1
Now, we perform the multiplication:
2 × 2 = 4
Finally, we add the results: 4 + 1 = 5
Therefore, the value of the expression
2 × 2 + 2 ÷ 2 is 5. Hence, the correct answer is D) 5.
Junaid has Rs 600. He gave one fourth to Awais and half of the remaining to Hamza. How much amount is left with him?
A) Rs. 50
B) Rs. 125
C) Rs. 200
D) Rs. 225
Explanation: Let's break down the given information step by step to determine the amount of money left with Junaid.
1) Junaid has Rs 600.
2) He gave one-fourth of Rs 600 to Awais. One-fourth of Rs 600 is (1/4) * Rs 600 = Rs 150. The amount remaining with Junaid is Rs 600 - Rs 150 = Rs 450.
3) Junaid then gave half of the remaining amount to Hamza. Half of Rs 450 is (1/2) * Rs 450 = Rs 225.
Therefore, the amount of money left with Junaid after giving one-fourth to Awais and half of the remaining to Hamza is Rs 225.
Hence, the correct answer is D) Rs. 225.
The ratio of boys to the girls in the class is 3:4. If there
27 boys, then the girl will be………
a) 12
b) 36
c) 40
d) 45
Find the value of x
such that the proportion x : 12 :: 3 : 4 is true.
A) 3
B) 4
C) 9
D)12
X< 3 is:
A) True sentence
B) False sentence
C) open sentence
D) Closed sentence
Explanation: The statement "X < 3" is an open sentence.
An open sentence is a sentence that contains one or more variables and becomes a statement when specific values are assigned to the variables. In this case, the variable X is being compared to the value 3 using the less than (<) symbol. Without knowing the specific value of X, we cannot determine if the statement is true or false.
