Class 12th

Direction for questions 17 to 20:

The bar chart shows average marks obtained in four different subjects for different years at A R Academy. Mark obtained in any subject in any year can be the multiples of five only.

The total average marks in the year 2020 is decreased with respect to the total average marks in year 2014 by

The oxide without nitrogen-nitrogen bond is:

Direction for questions 17 to 20:

The bar chart shows average marks obtained in four different subjects for different years at A R Academy. Mark obtained in any subject in any year can be the multiples of five only.

Find the year representing the maximum average marks, combining all the subjects.

Direction for questions 17 to 20:

The bar chart shows average marks obtained in four different subjects for different years at A R Academy. Mark obtained in any subject in any year can be the multiples of five only.

The percentage increase in the average marks in Social science in 2016 with respect to previous year = N% and the percentage increase in the average marks in Biology in 2016 over the previous year = M%. Find M - N

Direction for questions 17 to 20:

The bar chart shows average marks obtained in four different subjects for different years at A R Academy. Mark obtained in any subject in any year can be the multiples of five only.

Which of the following subjects shows maximum increase in average marks over any two consecutive years?

Five men decide to go shopping to Karol Bagh, Delhi. They arrived at the designated meeting place in the following order: 1. Raman, 2. Aman, 3. Dev, 4. Sanjay, and 5. Kamal. Each men spent at least Rs. 1000 below are some additional facts about how much they spent during their shopping spree. 

i. The man who spent Rs. 2234 arrived before the man who spent Rs. 1193.

ii. One man spent Rs. 1340 and he was not Dev.

iii. One man spent Rs. 1378 more than Aman.

iv. One man spent Rs. 2517 and he was not Raman.

v. Sanjay spent more than Dev.

vi. Kamal spent the largest amount and Aman the smallest.

What was the amount spent by Kamal?

In the following sequence of reactions,

$C_3{H}_6\stackrel{H^{+}/H_{2}O}{\to }A\underset{dilKOH}{\overset{K{\rm I}O}{\to }}B+C$            

The compounds B and C respectively are:

Five men decide to go shopping to Karol Bagh, Delhi. They arrived at the designated meeting place in the following order: 1. Raman, 2. Aman, 3. Dev, 4. Sanjay, and 5. Kamal. Each men spent at least Rs. 1000 below are some additional facts about how much they spent during their shopping spree. 

i. The man who spent Rs. 2234 arrived before the man who spent Rs. 1193.

ii. One man spent Rs. 1340 and he was not Dev.

iii. One man spent Rs. 1378 more than Aman.

iv. One man spent Rs. 2517 and he was not Raman.

v. Sanjay spent more than Dev.

vi. Kamal spent the largest amount and Aman the smallest.

The men who spent Rs. 1193 is

Number of paramagnetic oxides among the following given oxides is_________.

Li₂O, CaO, Na₂O₂, KO₂, MgO and K₂O