The fourth term of an arithmetic progression is 6. Then the sum of first seven terms is:
Given, a + 3d = 6 Accoding to the question Sum of first seven term a + a + d + a + 2d + a + 3d + a + 4d + a + 5d + a + 6d ⇒ 7a + 21d ⇒ 7 (a + 3d) ⇒ 7 × 6 ⇒ 42
Each even digit in the number 728945 is replaced by the next higher digit and each odd digit is replaced by the previous lower digit and the digits obta...
If all the vowels in the word ‘CAREFUL’ are changed to the next letter in the English alphabetical order and all the consonants remain the same then...
Each even digit in the number 926547 is replaced by the next higher digit and each odd digit is replaced by the previous lower digit and the digits obta...
If all the digits of the number ‘86542319’ are arranged in descending order from left to right, what will be the sum of the third digit from the lef...
How many such digits are there in the number 36215897, each of which will occupy the same position when rearranged in descending order as in the number?
How many such pairs of letters are there in the word NOVELTY each of which has as many letters between them in the word as in the English alphabet? (In ...
How many pairs of letters are there in the word “POWDER” each of which has as many letters between them in the word as in alphabetical serie...
Arrange the following words in ascending order.
A. Continent B. Country C. States D. Earth E. District
...How many such pairs of letter are there in the word FAVOURITE, each of which has as many letters between them in the word as in the English alphabet?
In the word ‘PEDIATRICIAN’ all consonants are written as their preceding letter and all vowels are written as their succeeding letters. Now all le...