Question : What is the sum of all two-digit even numbers?
Option 1: 2430
Option 2: 2410
Option 3: 2470
Option 4: 2520
Recommended: How to crack SSC CHSL | SSC CHSL exam guide
Don't Miss: Month-wise Current Affairs | Upcoming government exams
New: Unlock 10% OFF on PTE Academic. Use Code: 'C360SPL10'
Correct Answer: 2430
Solution : The first 2 digit number is 10 and the last two-digit number is 98. Sum = $\frac{n}{2}(\text{first term + last term})$ Number of terms = $\frac{(98 - 10)}{2} + 1$ = 45 Now, we can find the sum: Sum = $\frac{45}{2}(10 + 98)$ ⇒ Sum = $45\times54$ ⇒ Sum = 2430 Therefore, the sum of all two-digit even numbers is 2430. Hence, the correct answer is 2430.
Candidates can download this e-book to give a boost to thier preparation.
Application | Eligibility | Admit Card | Answer Key | Preparation Tips | Result | Cutoff
Question : What is the sum of all two-digit odd numbers?
Option 1: 2375
Option 2: 2475
Option 3: 2325
Option 4: 2425
Question : What is the sum of all two-digit numbers which are divisible by 9?
Option 1: 565
Option 2: 535
Option 3: 585
Option 4: 475
Question : The sum of the cubes of two given numbers is 10234, while the sum of the two given numbers is 34. What is the positive difference between the cubes of the two given numbers?
Option 1: 3484
Option 2: 3488
Option 3: 3356
Option 4: 8602
Question : If the sum of squares of two real numbers is 12 and the product of the numbers is 4, find the difference between the numbers.
Option 1: 4
Option 2: 8
Option 3: 1
Option 4: 2
Question : What is the sum of all three-digit numbers which are divisible by 15?
Option 1: 41200
Option 2: 36825
Option 3: 32850
Option 4: 28750
Regular exam updates, QnA, Predictors, College Applications & E-books now on your Mobile