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Recent questions tagged class10

The value of $\theta$ if $3 \tan ^2 \theta -1 =0$ is

asked Nov 3, 2014 by meena.p

1 answer

A piece of equipment cost a factory $6,00,000$.If it depreciates in value $15\%$ the first,$13.5\%$ the next year,$12\%$ the third year and so on,what will be the value at the end of $10$ years,all percentages applying to the original cost?

asked Nov 3, 2014 by sreemathi.v

1 answer

If $2 \cos 3 \theta =1$ then the value of $\theta$ is ________

asked Nov 3, 2014 by meena.p

1 answer

The value of $ \large\frac{\cos 30^{\circ}+\sin 60^{\circ}}{1+ \cos 60^{\circ}+ \sin 30^{\circ}}$ is _______

asked Nov 3, 2014 by meena.p

1 answer

The houses of a row is numbered consecutively from 1 to 49.Let $x$ be a value such that the sum of numbers of the houses preceding the house numbered $x$ is equal to the sum of the numbers of the houses following it.The value of $x$ is

asked Nov 3, 2014 by sreemathi.v

1 answer

In a right angled triangle right angle at A, if $\tan C= \sqrt 3$, then the value of $\sin B \cos C + \cos B \sin C$ is _______

asked Nov 3, 2014 by meena.p

1 answer

If $8 \tan A = 15$ then $\sin A - \cos A$ is ___

asked Nov 3, 2014 by meena.p

1 answer

If $ \tan \theta = \large\frac{20}{21}$, then the value of $\large\frac{1- \sin \theta + \cos \theta }{1+ \sin \theta + \cos \theta }$ is _______

asked Nov 3, 2014 by meena.p

0 answers

The coordinate of the circum centre of the triangle formed by the points $0(0,0), A(a,0)$ and $B(o,b)$ are

asked Nov 3, 2014 by meena.p

1 answer

The ratio in which the line segment joining points $A(a_1,b_1)$ and $B(a_2,b_2)$ is divided by y-axis is ________

asked Nov 3, 2014 by meena.p

1 answer

The ratio in which $(4,5)$ divides the line whose end points have coordinates $(2,3)$ and $(7,8)$ is ____

asked Nov 3, 2014 by meena.p

1 answer

If the centroid of the triangle formed by the points $(a,b),(b,c)$ and $(c,a)$ is at the origin then $ a^3+b^3+c^3=$

asked Nov 3, 2014 by meena.p

1 answer

If the centroid of the triangle formed by the points $(3,-5),(-7,4),(10,-k)$ is at the point $(k,-1)$ then k is ________

asked Nov 3, 2014 by meena.p

1 answer

The digits of a positive integer having three digits are in A.P. and their sum is $15$.The number obtained by reversing the digits is $594$ less than the original number.The number is _______

asked Oct 31, 2014 by sreemathi.v

1 answer

A man repays a loan of Rs.3250 by paying Rs.20 in the first month and then increases the payment by Rs.15 every month.How long will it take him to clear the loan?

asked Oct 31, 2014 by sreemathi.v

1 answer

A sum of Rs.280 is to be used to award four prizes.If each prize after the first is Rs.20 less than the preceding one,then the value of the first prize is

asked Oct 31, 2014 by sreemathi.v

1 answer

If there are $(2n+1)$ terms in an A.P,then the sum of odd terms and the sum of even terms is _____

asked Oct 31, 2014 by sreemathi.v

1 answer

The $10^{th}$ term of an A.P. is $52$ and $16^{th}$ term is $82$.Then its $32^{nd}$ term is _______

asked Oct 31, 2014 by sreemathi.v

1 answer

The general term of an A.P. whose $7^{th}$ term is $-1$ and $16^{th}$ term is $17$ is _____

asked Oct 31, 2014 by sreemathi.v

1 answer

If the $p^{th},q^{th}$ and $r^{th}$ term of an A.P. are $a,b,c$ respectively then,$(a-b)r+(b-c)p+(c-a)q$ is _______

asked Oct 31, 2014 by sreemathi.v

1 answer

If $\large\frac{4}{5}$$,a,2$ are the consecutive terms of an A.P,then the value of $a$ is _____

asked Oct 31, 2014 by sreemathi.v

1 answer

If the first,second and last term of an A.P. are $a,b$ and $2a$ respectively,then its sum is ______

asked Oct 31, 2014 by sreemathi.v

1 answer

The sum of $n$ terms of an A.P. is $2n^2+5n$ then $164$ belongs to ______ term.

asked Oct 31, 2014 by sreemathi.v

1 answer

If $S_n$ denotes the sum of $n$ terms of an A.P. whose first term is $'a'$.If the common difference $'d'$ is given by $d=S_n-kS_{n-1}+S_{n-2}$,then the value of $k$ is ______

asked Oct 31, 2014 by sreemathi.v

1 answer

If $\large\frac{a^{n+1}+b^{n+1}}{a^n+b^n}$ is the A.M. between $a$ and $b$,then the value of $'n'$ is ______

asked Oct 31, 2014 by sreemathi.v

1 answer

The sum of three numbers of an A.P. is $27$ and their product is $648$,then the numbers are ______

asked Oct 31, 2014 by sreemathi.v

1 answer

The sum of first $15$ terms of an A.P. whose $n^{th}$ term is $(4n+1)$ is ______

asked Oct 31, 2014 by sreemathi.v

1 answer

If the sum of $n$ terms of an A.P. is given by $S_n=3n^2-n$,then its common difference $'d'$ is ________

asked Oct 31, 2014 by sreemathi.v

1 answer

If the sum of $n$ terms of an A.P. is given by $S_n=(3n^2+2n)$,then its $n^{th}$ term is ________

asked Oct 31, 2014 by sreemathi.v

1 answer

If the $p^{th},q^{th}$ and $r^{th}$ term of an A.P. are $a,b,c$ respectively then $a(q-r)+b(r-p)+c(p-q)=$______

asked Oct 31, 2014 by sreemathi.v

1 answer

The $15^{th}$ term from the end of $2,6,10,14.......94$ is _________

asked Oct 31, 2014 by sreemathi.v

1 answer

The value of $x$ in the terms $2x,(x+10)$ and $(3x+2)$ in an A.P. is ________

asked Oct 31, 2014 by sreemathi.v

1 answer

Which term of the A.P. $24,21,18,15,.....$ is the first negative term?

asked Oct 31, 2014 by sreemathi.v

1 answer

If the $P^{th}$ term of an A.P. is $q$ and the $q^{th}$ term is $p$ then its $n^{th}$ term is ______

asked Oct 30, 2014 by sreemathi.v

1 answer

The $11^{th}$ term of an A.P. $(5a-x),6a,(7a+x),....$ is ______

asked Oct 30, 2014 by sreemathi.v

1 answer

If $m$ times the $n^{th}$ term of an A.P. is equal to $n$ times the $n^{th}$ term,then its $(m+n)^{th}$ term is _______ ?

asked Oct 30, 2014 by sreemathi.v

1 answer

The $16^{th}$ term of an A.P. whose first term is $-\sqrt 2$ and common difference is $\large\frac{1}{\sqrt 2}$ is _____

asked Oct 30, 2014 by sreemathi.v

1 answer

Two AP's have the same common difference,the first term of one of these is $4$ and that of the other is $9$,then the differences between the $4^{th}$ terms is _______

asked Oct 30, 2014 by sreemathi.v

1 answer

The third term of an A.P is $18$ and its seventh term is $30$,then its $17^{th}$ term is ______

asked Oct 30, 2014 by sreemathi.v

1 answer

In an A.P,the $24^{th}$ term is twice the $10^{th}$ term,then its $30^{th}$ term is _____ $13^{th}$ term.

asked Oct 30, 2014 by sreemathi.v

1 answer

The third term of an A.P. is $p$ and the fourth term is $q$,then its $10^{th}$ term is ____

asked Oct 30, 2014 by sreemathi.v

1 answer

If the $4^{th}$ term of an A.P. is twice the $8^{th}$ term,then its $10^{th}$ term is ______ the $11^{th}$ term

asked Oct 30, 2014 by sreemathi.v

1 answer

If $7$ times ,the $7^{th}$ term of an A.P. is equal to $11$ times the $11^{th}$ term ,then its $18^{th}$ term is _______

asked Oct 30, 2014 by sreemathi.v

1 answer

The common difference of an A.P. whose sum of $n$ terms is $xm^2+ym$ is ________

asked Oct 30, 2014 by sreemathi.v

1 answer

Find the value of $m$ if $m^{th}$ term of the A.P. $1,\large\frac{2}{11},\frac{3}{11}, ....... is \frac {17}{11}$

asked Oct 30, 2014 by sreemathi.v

1 answer

Which term of the A.P $-1,3,7,......$ is $95$?

asked Oct 30, 2014 by sreemathi.v

1 answer

How many of two digits are divisible by $3$?

asked Oct 30, 2014 by sreemathi.v

1 answer

How many of two digits are divisible by $5$?

asked Oct 30, 2014 by sreemathi.v

1 answer

The common difference in an A.P,whose $n^{th}$ term is given by $5n-7$ is ______

asked Oct 30, 2014 by sreemathi.v

1 answer

The $n^{th}$ term in the A.P $0,\large\frac{1}{4},\frac{1}{2},$...... is

asked Oct 30, 2014 by sreemathi.v

1 answer

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