385 3073 ?
1825 ?
?
1500 2484 ?
speed of the car increases by 2 km per hour at the end of every one hour. What
will be the distance covered at the end of ten hours from the start of the
journey?
months Kanchan joined her with Rs. 90000. After another six months Rekha also
joined them with Rs. 1.35 lakh. The profit earned at the end of 3 years when
Gita started the business should be distributed among Gita, Kanchan and Rekha
in the ratio of
cost of 13 tables and 7 chairs is Rs. 14200. What is the cost of 10 chairs?
obtained by interchanging the digits is 27. The sum of the digits is 15 and the
digit at tens place is bigger than the digit at the units place. What is the
two-digit number?
Rahul scored 55 more marks than Monika. Rohit scored 85 marks, which is 10
marks more than Monika’s. Raju scored 61 marks less than the maximum marks of
the test. What approximate percentage of marks did Raju score in the
examination, if he got 44 marks more than Arun?
5) None of these
Answers:
1. (5)
The series is ×2-1, ×4-3, ×6-5, ×8-7, ×10-9,…..
2. (4)
The series is +6^3+7^3+8^3+9^3+〖10〗^3,……..
3. (2)
The series is 50×0.5=25, 25×1.5=37.5, 37.5 ×2.5 =93.75, 93.75×3.5=328.125, 328.125×4.5=1476.5625
4. (1)
468+516=984; 516+984=1500; 984+1500=2484; 1500+2484=3984
5. (3)
The series is 11×3-3=30, 30×3-3=87, 87×3-3=258, 258×3-3=771, 771×3-3=2310
6. (2)
As the distance is covered in Arithmetic Progression,
Sum= n/2 [2a+(n-1)d]
[Here, a=30, d=2, n=10]
=10/2 [2×30+(10-1)2]
=5×(60+18)=5×[78]=390 km
7. (1)
Reqd. Ratio of Profit
Gita : Kanchan : Rekha
60000×36 : 90000×30 : 135000×24
=4 : 5 : 6
8. (2)
Cost of 26T+6C=Rs. 13800………(i)
Cost of 13T+7C=Rs. 14200……….(ii)
Now, equation (ii) ×26-equation (i) ×13
338T + 182C= 369200
338T + 78C=179400
– – –
104C = 189800
∴ C=189800/104=1825
∴ Cost of chair=1825×10=Rs.18250
9. (2)
10. (3)
Rohit’s marks=85
Monika’s marks=85-10=75
Rahul’s marks=75+55=130
Arun’s marks=130-35=95
Raju’s marks=95+44=139
Total maximum marks=139+61=200
Required percentage marks of Raju=139/200×100=69.5%≈70%