34
63
77
45
To find the pattern, observe the calculations in the first two figures. The central number is obtained by multiplying the two numbers on each diagonal and then adding the results.
• First Figure: - Surrounding numbers: 3, 3, 4, and 5
- Calculation: 3 × 4 = 12 and 3 × 5 = 15
- Adding these results: 12 + 15 = 36, which matches the central number.
• Second Figure: - Surrounding numbers: 4, 1, 7, and 3
- Calculation: 4 × 7 = 28 and 1 × 3 = 3
- Adding these results: 28 + 3 = 44, which matches the central number.
• Third Figure: - Surrounding numbers: 9, 8, and 5
- We need to find the missing central number, represented by ?.
- Calculation: 9 × 8 = 72 and 5 × 1 = 5
- Adding these results: 72 + 5 = 77
So, the correct answer is (C): 77
Rearrange the following parts to form a meaningful and grammatically correct sentence:
P. that maintaining a positive attitude
Q. even in difficult situations
R. is essential for success
S. and helps overcome obstacles effectively
Rearrange the following parts to form a meaningful and grammatically correct sentence:
P. a healthy diet and regular exercise
Q. are important habits
R. that help maintain good physical and mental health
S. especially in today's busy world
What comes next in the series?
\(2, 6, 12, 20, 30, \ ?\)
If x + 1/x = 5, what is the value of x² + 1/x²?