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Question Number 127890 Answers: 0 Comments: 0

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Question Number 120519 Answers: 1 Comments: 1

Question Number 119814 Answers: 3 Comments: 0

If a,b,c and d is real numbers satisfy (a/b)=(2/3), (c/d)=(4/5), (d/b)=(6/7) then (a/c) =?

$I f a, b, c a n d d i s r e a l n u m b e r s$ $s a t i s f y \frac{a}{b} = \frac{2}{3}, \frac{c}{d} = \frac{4}{5}, \frac{d}{b} = \frac{6}{7}$ $t h e n \frac{a}{c} = ?$

Question Number 118825 Answers: 2 Comments: 0

I am thinking of a two−digit number .If i write 3 to the left of my number and double this three digit number the result is 27 times my original number. what is my number ?

$I a m t h i n k i n g o f a t w o - d i g i t n u m b e r$ $. I f i w r i t e 3 t o t h e l e f t o f m y n u m b e r$ $a n d d o u b l e t h i s t h r e e d i g i t n u m b e r t h e$ $r e s u l t i s 27 t i m e s m y o r i g i n a l n u m b e r .$ $w h a t i s m y n u m b e r ?$

Question Number 115884 Answers: 0 Comments: 0

Question Number 113211 Answers: 3 Comments: 0

If α is a root of the equation 4x^2 +2x−1=0 . How do you prove the other root is 4α^3 −3α ?

$If α is a root of the equation$ ${4 x}^{2} + 2 x - 1 = 0 . How do you$ $prove the other root is$ $4 α^{3} - 3 α ?$

Question Number 112507 Answers: 1 Comments: 0

Question Number 110504 Answers: 0 Comments: 0

Given a transformation , T: C → C ; z → ω Show that if ω = ((z−i)/(z +1)) then z = ((ω + i)/(1−ω)). Hence the image of the line ∣z−i∣ = ∣z + 2∣ under the transformation T the ω−plane is a circle with center (−2,−i) and radius (√(10)) .

$Given a transformation, T : C \to C; z \to ω$ $Show that if ω = \frac{z - i}{z + 1} then z = \frac{ω + i}{1 - ω} . Hence$ $the image of the line ∣ z - i ∣ = ∣ z + 2 ∣ under the transformation$ $T the ω - plane is a circle with center (- 2, - i) and radius \sqrt{10} .$

Question Number 107433 Answers: 1 Comments: 0

∫x^x dx=?

$\int x^{x} d x = ?$

Question Number 106628 Answers: 0 Comments: 0

(((p−1))/p) where p=prime no. Remainder will always be (p−1) or −1 Que. find Remainder ((1!+2!+3!+........................1000!)/(10)) Que. ((1!+2!+3!+........................1000!)/(12)) Que. ((1!+2!+3!+........................1000!)/9) Que. What id the unit digit of below expression 1!+2!+3!+4!+......................1000! ANS. If we divide some number by 100,then remainder is last 2digit similary 1000----Last 3digit 10000 last 4 digit 100000 last 5 digits [(((1+2+3+4+0+0+0+..........+0)/(10))),() ] R=3 unit digit =3

$\frac{(p - 1)}{p} w h e r e p = p r i m e n o .$ $R e m a i n d e r w i l l a l w a y s b e (p - 1) o r - 1$ $Q u e . f i n d R e m a i n d e r$ $\frac{1! + 2! + 3! + . . . . . . . . . . . . . . . . . . . . . . . . 1000!}{10}$ $Q u e .$ $\frac{1! + 2! + 3! + . . . . . . . . . . . . . . . . . . . . . . . . 1000!}{12}$ $Q u e . \frac{1! + 2! + 3! + . . . . . . . . . . . . . . . . . . . . . . . . 1000!}{9}$ $Q u e . W h a t i d t h e u n i t d i g i t o f b e l o w$ $e x p r e s s i o n$ $1! + 2! + 3! + 4! + . . . . . . . . . . . . . . . . . . . . . . 1000!$ $A N S . I f w e d i v i d e s o m e n u m b e r b y 100, t h e n r e m a i n d e r i s l a s t 2 d i g i t$ $s i m i l a r y 1000 - - - - L a s t 3 d i g i t$ $10000 l a s t 4 d i g i t$ $100000 l a s t 5 d i g i t s$ $[\begin{matrix} \frac{1 + 2 + 3 + 4 + 0 + 0 + 0 + . . . . . . . . . . + 0}{10} \end{matrix}]$ $R = 3$ $u n i t d i g i t = 3$

Question Number 106238 Answers: 0 Comments: 0

Question Number 102480 Answers: 1 Comments: 0

n positive integer. when dividen by 7 give remainder 4 and when divided by 4 give remainder 2. find the value of n

$n p o s i t i v e i n t e g e r . w h e n$ $d i v i d e n b y 7 g i v e r e m a i n d e r 4$ $a n d w h e n d i v i d e d b y 4 g i v e$ $r e m a i n d e r 2 . f i n d t h e v a l u e$ $o f n$

Question Number 100696 Answers: 0 Comments: 4

1. 25≠66 = True or False? 2. 44=44 =True or false? 3. 39>169=True or False? 4. 15<61 = True or false? Make sure you have to answer correctly

$1 . 25 \neq 66 = True or False ?$ $2 . 44 = 44 = True or false ?$ $3 . 39 > 169 = True or False ?$ $4 . 15 < 61 = True or false ?$ $Make sure you have to$ $answer correctly$

Question Number 99614 Answers: 0 Comments: 1

Question Number 99058 Answers: 0 Comments: 6

Find a number that becomes N times smaller if the first digit is removed in the following cases: 1) N=17 2) N=27 3)N=37 4)N=47.

$F i n d a n u m b e r t h a t b e c o m e s N t i m e s$ $s m a l l e r i f t h e f i r s t d i g i t i s r e m o v e d$ $i n t h e f o l l o w i n g c a s e s :$ $1) N = 17$ $2) N = 27$ $3) N = 37$ $4) N = 47 .$

Question Number 99057 Answers: 0 Comments: 0

Find a perfect number that starts with 31415.

$F i n d a p e r f e c t n u m b e r t h a t s t a r t s$ $w i t h 31415 .$

Question Number 97335 Answers: 0 Comments: 2

Question Number 97319 Answers: 1 Comments: 0

If 5,6,11,17,28,45,73,x,y,z then the value of x,y,z?__ (a) 118,192,309 (b) 117,191,310 (c) 117,191,308 (d) 118,192,310 (e) 118,191,309

$If 5, 6, 11, 17, 28, 45, 73, x, y, z$ $then the value of x, y, z ?__$ $(a) 118, 192, 309$ $(b) 117, 191, 310$ $(c) 117, 191, 308$ $(d) 118, 192, 310$ $(e) 118, 191, 309$

Question Number 96454 Answers: 1 Comments: 0

Question Number 95699 Answers: 1 Comments: 4

many digits of number 5^8 ×4^5 ×7

$many digits of number$ $5^{8} \times 4^{5} \times 7$

Question Number 94457 Answers: 1 Comments: 0

a practical example 1 construction worker can excavate a pit in 3 hours. how long will it take 3 workers to do this job?

$a p r a c t i c a l e x a m p l e$ $1 construction worker can excavate a$ $pit in 3 hours . how long will it take 3$ $workers to do this job ?$

Question Number 94237 Answers: 1 Comments: 1

Question Number 93976 Answers: 1 Comments: 10

Question Number 93626 Answers: 1 Comments: 9

Question Number 93623 Answers: 0 Comments: 2

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