Recent questions tagged sequences&series

Have a look at the series : $2,1,(1/2),(1/4),\dots$ What number should come next?$(1/3)$$(1/8)$$(2/8)$$(1/16)$

In the following letter series, some of the letters are missing which are given in that order as one of the alternatives below it. Choose the correct alternative.$\text{a...

In the following questions, one term in the number series is wrong. Find out the wrong term.$52,51, 48, 43, 34, 27, 16$$51$$48$$34$$43$

In the following question, one term in the number series is wrong. Find out the wrong term.$125, 126, 124, 127, 123, 129$$123$$124$$126$$129$

In the following question, find out the correct answer from the given alternatives.If $\text{TABLE}$ is coded as $\text{GZYOV}$, how is $\text{JUICE}$ coded?$\text{OZLFJ}...

In the following question, find out the correct answer from the given alternatives.If in a certain language $\text{MECHANICS}$ is coded as $\text{HCEMASCIN}$, how is $\te...

In the following question, a series is given with one term missing. Choose the correct alternative that will continue the same pattern and fill in the blank space.$71,76,...

In the following question, a series is given with one term missing. Choose the correct alternative that will continue the same pattern and fill in the blank space.$6, 25$...

In the following question, three out of four alternatives contain alphabet placed in a particular form. Find the one that does not belong to the group.$JMP$$RUX$$UYB$$EHK...

In the following question, three out of four alternatives contain alphabet placed in a particular form. Find the one that does not belong to the group.$CBAZ$$AZYX$$AZBY$$...

In the following question, three out of four alternatives contain alphabet placed in a particular form. Find the one that does not belong to the group.$LNMO$$CRDT$$EUFV$$...

In the following question, three out of four alternatives contain alphabet placed in a particular form. Find the one that does not belong to the group.$BCDEI$$PQRSW$$LMNO...

Find out the wrong term from the following series and select the number from the alternatives which will replace the wrong term in the series.$2,9,28,65,126,216,344:$$38$...

Find the odd one in the following series:$2, 5, 10, 17, 26, 37, 50, 64$$50$$26$$37$$64$

Complete the missing element of the following series:$1$$2$$3$$4$

FAG, GAF, HAI, IAH, _____JAKHALHAKJAI

JAK, KBL, LCM, MDN, _____OEPNEOMENPFQ

Which number pair comes next in the series?$4\:7\:26\:10\:13\:20\:16$$14\:4$$14\:17$$18\:14$$19\:14$

QAR, RAS, SAT, TAU, _____UAVUATTASTAT

Let $a_{1},a_{2}\dots$ be integers such that $a_{1}-a_{2}+a_{3}-a_{4}+\dots+(-1)^{n-1}a_{n}=n$, for all $n\geq 1$ Then $a_{51}+a_{52}+\dots+a_{1023}$ equals$-1$$10$$0$$1$

Let $\text{S}_n$ denote the sum of the squares of the first $n$ odd natural numbers. If $\text{S}_n=533n,$ find the value of $n$.$18$$20$$24$$30$

If $a_{1}+a_{2}+a_{3}+\dots+a_{n}=3(2^{n+1}-2)$, for every $n\geq 1$, then $a_{11}$ equals ______

25, 100, ?, 1600, 6400A. 400B. 300C. 360D. 420E. None of these

18, 22, 30, ? ,78, 142A. 44B. 35C. 46D. 48E. None of these

11, 24, 50, 102, 206, ?

1, 9, 25, 49, ?, 121. What will come at the place of question mark ?A.100B. 91C. 64D.81