hello !! does anyone know about some free online classes links for Quantitative Aptitude ?....if so please post some of the links below... !
👍👍
A horse is tied with four ropes of length 10m each which are tethered at four vertices of a square grass lawn of side length 10m. Find the largest area in which the horse can graze the grass. (Let π = 3 and √3 = 1.73)
A. 25m² B. 27m² C. 32m² D. 37m²
The nth term and the sum of the first n terms of a sequence are Tn and Sn respectively. If Tn = Tn-1 - Tn-2 and Tn≠0, then which of the following is definitely true?
shudnt d answer be S88= S188??
ANS given is S100=S160...
a is odd;b is even;find how many solutions are there for ab+2=2a+b+600?
dont have the OA .approach and answer please...
If x,y,z are 3 positive integers satisfying x+y+z=13 and xy+xz=42;find hte minimum value of y^2+z^2.
dont have OA.approach and answer please...
mod(x^2+y^2)=0.2,mod(x-y)=0.6;Find mod(mod(x)-mod(y))?
dont have OA.approach and answer please.
TIA
a train of length 100 m ,travelling at 60km/hr,overtook a motorcyclist travelling in the same direction at a speed of 20 km/hr at 8.00am.At 10.am it overtook another cyclist travelling in the same direction at a speed of 10km/hr.At what time will the motorcyclist overtake the cyclist?
- 8.00pm
- 7.00pm
- 6.00pm
- 5.00pm
0 voters
f(x) is a quadratic expression such that f(x+3)+f(x-3)=6x^2-2x+39.
find f(-7)?
dont have OA.Need approach.
In how many ways can 4 prizes each having 1st 2nd 3rd positions be given to 3 boys, if each boy is eligible to receive one prize for each event?
in how many ways can a crew of a 10 oared boat be arranged , when of the 10 people available 2 of whom can row only on he bow side and 3 of whom can row only on the stroke side?
f(x)=Min(2-3x-3x^2,6x^2+9x+6),find max f(x),
Again,no OA!!..need approach to these kind of questions..
TIA
Divide 40 in as many integer parts as you want but the product of all those parts should be the maximum.How many parts and of what value would you divide 40 in.
no OA AGAIN!!(i know im driving some people insane..pardon me).Need approach..this is a toughie..
IN 20TH CENTURY THERE WRE 7 BOWLERS IN INDIAN CRICKET TEAM'S LIST OF 16 PLAYERS SHORT LISTED TO PLAY NXT WORLD CUP. STATISTIANS DISCOVERED THAT IF YOU LOOKED AT THE NUMBER OF WICKTS TAKEN BY EACH OF THE 7 BOWLERS HAD A STRANGE PROPERTY. THE NUMBERS WERE SUCH THAT FOR ANY TEAM SELECTION OF 11 PLAYERS { HAVING 1 TO 7 BOWLERS } BY USING THE NUMBER OF WICKETS TAKEN BY EACH BOWLERS AND ATTACHING COEEFIECNTS OF +1 , 0 OR -1 TO EACH VALUE AVAILABLE AND ADDING THE RESULTANT VALUES , ANY NUMBER FROM 1 TO 1093 , BOTH INCLUDED COULD BE FORMED . IF WE DENOTE W1 , W2 , W3 ...W7 AS THE 7 VALUES IN THE ASCENDING ORDER THT COULD BE THE ANSWER TH THE FOLLOWING QUESTION ..........
FIND THE VALUE OF W1, + 2W2 + 3W3 + 4W4 + 5W5 +6W6 ??
The three words "TATA Assets Rock" are flashed such that the words individually are switched on at regular intervals of 4,7 and 9 seconds respectively and after they are switched on, the words are switched off after 2 sec, 4 sec and 5 sec respectively. If at time 't' all the words happened to switch off simultaneously, find the least time 't' which all three words will switch on simultaneously.
A set of S consists of i). All odd numbers from 1 to 55.ii). All even numbers from 56 to 150.What is the index of the highest power of 3 in the product of all the elements of the set S?
In a test consisting of 15 questions, 3 marks are awarded for a correct answer, 1 mark is deducted for an incorrect answer and no mark is awarded for an unattempted question. If a student attempts at least one question in the paper, what is the number of distinct scores that he can get?
a)57
b)58
c)59
d)None of these
Plz post explanations. Thanx 😃
the age of father was three times that of his son when the father was as lod as the son is now..find the ratio of present ages of father and son???
easy approach plzz
In a class of 96 students, each student opts for at least one of the three subjects – Physics, Chemistry and Mathematics. It is also known that: (i) The number of students who opt for Physics only is equal to the number of students who opt for Mathematics only and is also equal to twice the number of students who opt for both Mathematics and Physics but not Chemistry. (ii) The number of students who opt for exactly two subjects is 25. (iii) The number of students who opt for Chemistry is 31. (iv) Among those who opt for Chemistry, 13 students opt for at least two subjects.
If the number of students who opt for Mathematics is the maximum among the three subjects, then what is the maximum possible number of students who opt for both Physics and Chemistry but not Mathematics?
a)5
b)6
c)7
d)Cannot be determined
Plz post explntns. Thnx 😃
In the figure given below, C is a point inside the square PQRS. If PC = 6 m, QC = 8 m and SC = 10 m, then find the length of RC.
(Fig in attchmnt)
a)9√2 m
b)8√3 m
c)8√2 m
d)9√3 m
Plz post explntns. Thnx 😃
please solve this question it's from quadratic equation
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0 voters